{"title":"Clutches","description":null,"products":[{"product_id":"stm-anti-hopping-kupplung-bmw-s1000rr-09-18-fbm-s020","title":"STM Slipper Clutch BMW S1000RR K46 (2009-2018) FBM-S020","description":"\u003cp\u003eWhen lap times matter and every corner entry is a commitment, the STM slipper clutch for the BMW S1000RR K46 (2009-2018) delivers the mechanical confidence to brake later, downshift harder, and carry more corner speed. Engineered for track and sport riding, part number FBM-S020 eliminates rear-wheel hop and reduces the risk of a highside with a precision that no standard OEM clutch can match.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on aggressive downshifts, maintaining stable power delivery across all riding modes\u003c\/li\u003e\n\u003cli\u003eEliminates rear-wheel chatter for precise traction and control under both acceleration and hard braking\u003c\/li\u003e\n\u003cli\u003eReduces the trigger impulse of a highside, adding a critical safety margin at track speeds\u003c\/li\u003e\n\u003cli\u003eEnables controlled rear-wheel slides for confident, sport-oriented riding\u003c\/li\u003e\n\u003cli\u003eSuperior clutch engagement feel through corners — prevents the front end from tucking as the clutch closes\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design prevents pressure plate wobble, resulting in a smoother, more progressive lever release\u003c\/li\u003e\n\u003cli\u003eSignificant rotating mass reduction of approximately 0.7–0.8 kg, directly improving throttle response and handling agility\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the anti-hopping function with pin-sharp accuracy at high engine speeds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePatented Ball-Ramp Technology\u003c\/h2\u003e\u003cp\u003eAt the heart of the STM FBM-S020 sits a patented ball-ramp assembly — the defining element that separates this clutch from simpler slipper designs. Under hard deceleration the ramps separate the clutch plates progressively, metering the degree of engine braking in real time rather than applying a blunt, fixed reduction. The result is a rear tyre that stays planted and steerable rather than locking and skipping, giving the rider meaningful feedback and genuine control through the braking zone.\u003c\/p\u003e\u003ch2\u003eWeight and Rotating Mass\u003c\/h2\u003e\u003cp\u003eShedding approximately 0.7–0.8 kg from the drivetrain's rotating assembly has a disproportionate effect on a high-revving inline-four. The S1000RR responds to throttle inputs more sharply, direction changes feel lighter, and the engine climbs through its rev range with noticeably less mechanical inertia. On circuit, that translates to faster lap times; on road, it means a more alert, involving riding experience.\u003c\/p\u003e\u003ch2\u003eBuild Quality and Engineering\u003c\/h2\u003e\u003cp\u003eSTM manufactures slipper clutches to the standards demanded by professional road-racing teams across Europe. Every component in the FBM-S020 is precision-machined to tight tolerances, ensuring consistent clutch behaviour from the first session to the hundredth. The diaphragm spring eliminates the pressure-plate float that can introduce inconsistency into the clutch feel, so the lever response remains predictable whether the engine is cold or fully up to temperature.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FBM-S020 is a direct fitment for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBMW S1000RR — K46 chassis, model years 2009 to 2018\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFBM-S020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eBMW S1000RR K46 (2009–2018)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp anti-hopping system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring type\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg vs. OEM assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705372426,"sku":"FBM-S020","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FAP-S040.png?v=1780811702"},{"product_id":"stm-fap-s040","title":"STM Slipper Clutch for Aprilia RSV4 \/ RSV4 1100 Factory \/ R \/ RR \/ RF (2009–2026) FAP-S040","description":"\u003cp\u003eEngineered for riders who demand confidence on every downshift, the STM slipper clutch for the Aprilia RSV4, RSV4 1100 Factory, R, RR and RF transforms the feel of the lever from the first installation. Whether you are threading through long sweeping corners on a Sunday road ride or braking hard into a hairpin on track, this clutch eliminates the rear-wheel chatter and engine over-rev that stock systems simply cannot suppress. The result is a calmer, more planted rear end and a clutch action so progressive it becomes one of the most satisfying controls on the bike.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev and rear-wheel hop under hard downshifts, keeping the bike settled and predictable at all times.\u003c\/li\u003e\n\u003cli\u003eReduces the trigger impulse that causes highsiders, meaningfully improving safety margins on road and track alike.\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slides in corners, giving experienced riders a precise, adjustable degree of rotation.\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with exceptional precision at high engine speeds.\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring eliminates pressure-plate judder, delivering a smooth, linear lever release that inspires confidence in corners.\u003c\/li\u003e\n\u003cli\u003eReduces rotating mass by approximately 0.7–0.8 kg, lightening the drivetrain and improving throttle response.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eComfort, Feel and Daily Rideability\u003c\/h2\u003e\u003cp\u003eThe STM FAP-S040 is not purely a track tool. The diaphragm spring design gives the lever a lighter, more consistent pull across its full travel, reducing hand fatigue on longer rides. Because the slipper function operates independently of normal clutch engagement, the clutch feels identical to a well-set standard unit during regular road use — progressive on take-up, smooth on release, and utterly free of the snatching that plagues worn or poorly adjusted OEM assemblies. Riders who spend full days in the saddle, whether commuting between weekend destinations or touring to a circuit, will notice the difference within the first hour.\u003c\/p\u003e\u003ch2\u003eConstruction and Engineering\u003c\/h2\u003e\u003cp\u003eSTM designs and manufactures slipper clutches to motorsport tolerances, and the FAP-S040 is no exception. The patented ball-ramp system that controls the anti-hopping function is precision-machined to maintain consistent behaviour across the full RPM range, not just at peak power. The diaphragm spring assembly removes the oscillation from the pressure plate that conventional coil-spring clutches exhibit under aggressive use, translating directly into a more communicative and less fatiguing lever. The weight reduction of approximately 0.7–0.8 kg compared to the standard clutch assembly lowers rotational inertia, contributing to crisper engine response and reduced stress on the gearbox during rapid downshifts.\u003c\/p\u003e\u003ch2\u003eOn the Road and on Track\u003c\/h2\u003e\u003cp\u003eAt the road-riding end of the performance spectrum, the STM slipper clutch rewards disciplined late braking with rear-wheel stability that standard clutches cannot match. On track, the controlled slide behaviour allows riders to use the rear tyre actively in corners — modulating slip angle rather than fighting sudden lock-up. The reduction in highsider trigger impulse is a genuine safety benefit: in any situation where the rear wheel suddenly regains traction after a slide, the slipper mechanism absorbs the energy spike before it can transfer into a violent pitch.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FAP-S040 is a direct-fit slipper clutch for the following Aprilia models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAprilia RSV4 (2009–2026)\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 R (2009–2026)\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 RR (2009–2026)\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 RF (2009–2026)\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 1100 Factory (2009–2026)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFAP-S040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eAprilia RSV4 \/ RSV4 1100 Factory \/ R \/ RR \/ RF (2009–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlipper mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring type\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg vs. standard clutch assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705437962,"sku":"FAP-S040","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FAP-S040_42011b49-15d5-4818-b323-cef306b3b064.png?v=1780811705"},{"product_id":"stm-fbm-s021","title":"STM Slipper Clutch BMW S1000RR K67 (2019-2026) FBM-S021","description":"\u003cp\u003eSTM's slipper clutch for the BMW S1000RR K67 is the product of decades of Italian racing engineering, combining a beautifully machined billet aluminium basket with patented ball-ramp anti-hopping geometry that has proven itself at the highest levels of Superbike competition. For riders who demand total rear-wheel composure under hard braking and aggressive downshifts, this is the definitive upgrade.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp mechanism controls the anti-hopping function with exceptional precision, delivering stability at high engine speeds that conventional clutches simply cannot match.\u003c\/li\u003e\n\u003cli\u003eEliminates rear-wheel hop and reduces the trigger impulse of a highside, adding a meaningful safety margin during track sessions and spirited road use alike.\u003c\/li\u003e\n\u003cli\u003eControlled rear-wheel slide characteristic improves feel and handling when transitioning on the throttle mid-corner.\u003c\/li\u003e\n\u003cli\u003eSuperior clutch-closure control in bends prevents the motorcycle from tucking under load, keeping the chassis neutral through the arc.\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring replaces the conventional pressure plate, removing wobble at the point of release for a more progressive, tactile lever feel.\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through a significant reduction in rotating mass — a tangible improvement in throttle response and overall performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM has been manufacturing racing clutches in Italy since the 1990s, supplying factory World Superbike and Moto2 teams with components that meet the demands of professional competition. Every element of this clutch reflects that lineage: the precision-machined aluminium components carry the fine tolerances you would expect from a race-developed part, and the overall assembly is engineered to perform consistently lap after lap without the degradation that affects standard OEM units under repeated thermal and mechanical stress.\u003c\/p\u003e\u003cp\u003eThe ball-ramp anti-hopping system is a genuine STM patent — not an adaptation of a third-party design — which means the progressive ramp profile, the spring preload and the engagement point have all been developed and refined in-house specifically for high-power Superbike applications. On the S1000RR K67, whose inline-four produces aggressive engine braking, the difference in rear-wheel stability and rider confidence is immediately apparent.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eUnder hard braking into a late apex, the slipper mechanism allows the clutch to partially disengage as the rear wheel decelerates faster than the engine, smoothing the transition and keeping the tyre loaded rather than bouncing. In the corner itself, the diaphragm spring ensures the clutch closes progressively rather than snapping shut, preventing the chassis dive that can unsettle a line. The net result is faster, more consistent lap times and a noticeably more composed ride on challenging public roads.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is designed and manufactured to fit the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBMW S1000RR K67 — model years 2019 to 2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003ePart number: FBM-S021. Always verify fitment against your VIN and model designation before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFBM-S021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eBMW S1000RR K67 (2019–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-hopping mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure plate design\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg reduction in rotating mass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary material\u003c\/td\u003e\n\u003ctd\u003eMachined aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eRoad and track (Superbike \/ sport riding)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705536266,"sku":"FBM-S021","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FAP-S040_df641722-7128-45f7-97d9-54b63b2c0484.png?v=1780811710"},{"product_id":"stm-fdu-s070","title":"STM Slipper Clutch for Ducati Panigale 959 (2016-2019) - FDU-S070","description":"\u003cp\u003eWhen a highside is the last thing between you and the podium, the STM slipper clutch for the Ducati Panigale 959 (2016-2019) is the upgrade that matters most. Engineered from the ground up for track and high-performance road use, this unit actively prevents rear-wheel hop under hard downshifts, neutralises the engine-braking spike that triggers highsides, and shaves 0.7-0.8 kg of rotating mass in a single installation.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp mechanism controls the anti-hopping function precisely, optimising rear-wheel traction at high rpm and under aggressive trail-braking\u003c\/li\u003e\n\u003cli\u003eEliminates over-revving on downshifts, delivering a stable, composed transition through every corner entry\u003c\/li\u003e\n\u003cli\u003eSignificantly reduces the highside trigger impulse, a critical safety benefit when riding at the limit on track\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slide for confident, repeatable corner entries in sport riding\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design prevents pressure-plate flutter, giving a cleaner, more progressive clutch-release feel at the lever\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7-0.8 kg through a substantial reduction in rotating mass, improving throttle response and overall performance\u003c\/li\u003e\n\u003cli\u003eBetter clutch engagement control mid-corner prevents unwanted dive, keeping the chassis balanced through the apex\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngineering Detail\u003c\/h2\u003e\u003cp\u003eSTM's ball-ramp system is the heart of the FDU-S070. Under normal acceleration the ramps lock up the clutch pack for full, clean drive. The moment engine braking exceeds a calibrated threshold — on a hard downshift or a snap of the throttle shut — the ramps allow the basket to slip relative to the hub, bleeding off the excess torque before it reaches the rear tyre. The result is a rear wheel that stays planted rather than skipping, and a chassis that remains predictable exactly when precision matters most.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring replaces the conventional coil-spring stack, eliminating the oscillation that causes pressure-plate wobble in stock clutches. Lever feel becomes noticeably lighter and more linear, reducing hand fatigue over a full race distance or a long sporting road ride. The reduced rotating mass also lets the engine rev and respond more freely, a noticeable gain on a motor as characterful as the Panigale 959's L-twin.\u003c\/p\u003e\u003ch2\u003eTrack and Road Use\u003c\/h2\u003e\u003cp\u003eOn track, the FDU-S070 transforms the Panigale 959's corner-entry character. Where the stock clutch can allow rear-wheel hop and mid-corner instability, the STM unit keeps the bike settled and the rider focused on the line. On the road, the same anti-hopping action adds a meaningful layer of safety: a momentary over-aggressive downshift no longer risks an unpredictable rear-wheel reaction. This is a component that earns its place whether the Panigale 959 lives in a race paddock or on demanding weekend roads.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThis slipper clutch is a dedicated fitment for the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDucati Panigale 959 (2016, 2017, 2018, 2019)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FDU-S070\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7-0.8 kg (rotating mass reduction)\u003c\/li\u003e\n\u003cli\u003eFitment: Ducati Panigale 959, model years 2016-2019\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705569034,"sku":"FDU-S070","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FAP-S040_bf9d52e1-2953-4fa3-9c86-7bc00203a09b.png?v=1780811715"},{"product_id":"stm-fdu-s040","title":"STM Slipper Clutch for Ducati Panigale 899 (2013-2016) – FDU-S040","description":"\u003cp\u003eFor riders who want a more composed, confidence-inspiring Panigale 899 on both road and track, the STM slipper clutch FDU-S040 is one of the most worthwhile upgrades available. It eliminates the rear-wheel hop and engine over-rev that can unsettle the 899 under hard downshifts, making braking zones safer and more consistent without demanding any change in riding style.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, maintaining stable, predictable power delivery through the drivetrain\u003c\/li\u003e\n\u003cli\u003eReduces rear-wheel hop for improved traction and more precise control when trail-braking\u003c\/li\u003e\n\u003cli\u003eMinimises the trigger impulse of a highside, significantly improving safety on track and spirited road rides\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slide for optimised handling balance and increased rider confidence\u003c\/li\u003e\n\u003cli\u003eImproved clutch engagement feel in corners prevents the front end from tucking under deceleration\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring eliminates pressure-plate judder for a smoother, cleaner lever release every time\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with precision at high engine speeds\u003c\/li\u003e\n\u003cli\u003eSignificant weight saving of approximately 0.7–0.8 kg through a reduction in rotating mass, sharpening overall throttle response and engine dynamics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Technology\u003c\/h2\u003e\u003cp\u003eSTM has developed the FDU-S040 around a patented ball-ramp system that progressively limits back-torque during downshifts. Unlike simpler cam-ramp designs, the ball-ramp geometry delivers a consistent, repeatable release point regardless of engine speed, giving the rider a predictable sensation at the lever. The diaphragm spring replaces a conventional coil-spring stack, removing pressure-plate flutter under rapid throttle transitions and producing the smooth clutch action that STM slipper clutches are known for throughout the paddock.\u003c\/p\u003e\u003cp\u003eThe reduction in rotating mass — approximately 0.7 to 0.8 kg compared to the stock unit — is not just a number on paper. On a motorcycle as responsive as the Panigale 899, lighter rotating inertia translates directly into crisper throttle pick-up and a more agile feel mid-corner. This makes the FDU-S040 a genuinely useful everyday upgrade as much as a track-day tool, improving the 899's character at any pace.\u003c\/p\u003e\u003ch2\u003eRoad and Track Use\u003c\/h2\u003e\u003cp\u003eThe STM FDU-S040 is equally at home on a technical mountain road as it is in a race paddock. On the road, the slipper function takes the stress out of hurried downshifts, whether through an unfamiliar set of bends or in stop-start traffic where lever use is frequent. On track, it provides the consistent back-torque limitation that allows riders to exploit the 899's braking performance fully, without worrying about a snapping rear end upsetting the entry phase. The improved clutch engagement feel through corners is a particularly notable benefit: the tendency of dry-clutch Ducatis to lurch on partial engagement is substantially reduced, allowing smoother, more measured drive out of slow corners.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is a direct-fit replacement unit for the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDucati Panigale 899 – model years 2013, 2014, 2015, 2016\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFDU-S040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eDucati Panigale 899 (2013–2016)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlipper mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring type\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving\u003c\/td\u003e\n\u003ctd\u003eApproximately 0.7–0.8 kg reduction in rotating mass vs. stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705601802,"sku":"FDU-S040","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FAP-S040_d3aa8e01-5f14-4e86-a3c4-85b7fe14d595.png?v=1780811715"},{"product_id":"stm-fdu-s050","title":"STM Slipper Clutch Ducati Panigale 1199 \/ S \/ R (2012–2017) – FDU-S050","description":"\u003cp\u003eCrafted in Italy with the same obsessive attention to detail that defines the Panigale lineage itself, the STM slipper clutch FDU-S050 is the benchmark upgrade for Ducati Panigale 1199, 1199 S and 1199 R riders who demand race-proven control on both road and track. STM's heritage in developing clutch systems for MotoGP and World Superbike campaigns is written into every component of this unit — from the patented ball-ramp anti-hopping mechanism to the diaphragm spring pressure plate that makes engagement feel intuitive rather than abrupt.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp anti-hopping mechanism delivers precise, progressive back-torque limiting — eliminating rear-wheel hop and dramatically reducing the risk of a highside under hard downshifts\u003c\/li\u003e\n\u003cli\u003eControlled rear-wheel slide capability for confident, stable corner entry — exactly what track days and spirited road riding demand\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring pressure plate prevents pressure-plate wobble, giving the clutch lever a smooth, consistent feel as it releases\u003c\/li\u003e\n\u003cli\u003eImproved clutch engagement in corners prevents chassis pitch-down (head-dip), keeping the bike balanced through the apex\u003c\/li\u003e\n\u003cli\u003eSignificant rotating-mass reduction of approximately 0.7–0.8 kg compared to the stock unit, translating directly into sharper throttle response and improved acceleration\u003c\/li\u003e\n\u003cli\u003eRace-developed design with an Italian pedigree trusted at the highest levels of motorcycle competition\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM has been engineering high-performance clutch systems in Italy for decades, supplying factory-level teams in the most demanding championships on earth. The FDU-S050 carries that lineage into road-legal trim: every component reflects STM's uncompromising manufacturing standards, with tight tolerances and a finish quality that stands apart from generic aftermarket alternatives. Fitting the STM unit is a visual as well as a mechanical upgrade — the internals reflect a purposeful, race-inspired aesthetic that suits the Panigale's character perfectly.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eThe Ducati Panigale 1199 engine generates fierce engine-braking forces during aggressive downshifts. Under hard deceleration the stock clutch can allow the rear wheel to lock momentarily, inducing hop and — in worst cases — a dangerous highside. STM's ball-ramp geometry modulates the clamping force automatically as back-torque rises, allowing a controlled amount of slip that keeps the tyre in contact with the tarmac. The result is faster, safer corner entry and the confidence to trail-brake deeper into bends. On track the weight saving also yields measurable gains: reducing rotating mass by 0.7–0.8 kg lessens the gyroscopic effect and sharpens the bike's ability to change direction.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is engineered specifically for the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDucati Panigale 1199 (2012–2017)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1199 S (2012–2017)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1199 R (2012–2017)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFDU-S050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-hopping mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure plate\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving vs. stock\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg (rotating mass reduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eDucati Panigale 1199 \/ 1199 S \/ 1199 R (2012–2017)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of manufacture\u003c\/td\u003e\n\u003ctd\u003eItaly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705732874,"sku":"FDU-S050","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050.png?v=1780811726"},{"product_id":"stm-fdu-s050-ducati-1299","title":"STM Slipper Clutch for Ducati Panigale 1299\/S (2015-2018) FDU-S050","description":"\u003cp\u003eWhen every tenth of a second counts on track, the STM slipper clutch for the Ducati Panigale 1299\/S (2015-2018) delivers the kind of precision control that separates confident, aggressive riding from white-knuckle braking. Engineered specifically for the 1299 platform, this clutch eliminates rear-wheel hop under hard downshifts, minimises highside risk at high speeds, and shaves approximately 0.7-0.8 kg of rotating mass from the drivetrain — all in a direct OEM-replacement package carrying part number FDU-S050.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-revving on downshifts, keeping the rear tyre planted and the chassis stable through corner entry\u003c\/li\u003e\n\u003cli\u003eReduces rear-wheel hop for measurably improved traction and stability under hard braking\u003c\/li\u003e\n\u003cli\u003eMinimises the trigger impulse of a highside, significantly lowering risk at racing speeds\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slide for confident, sport-oriented cornering\u003c\/li\u003e\n\u003cli\u003eImproved clutch closing-phase control in corners prevents unwanted tucking of the front end\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp technology governs the slipper function with precision at high engine speeds\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring eliminates pressure-plate wobble, delivering a cleaner, more progressive lever feel\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7-0.8 kg through reduction of rotating mass improves throttle response and overall performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngineering Behind the STM Slipper Clutch\u003c\/h2\u003e\u003cp\u003eSTM's patented ball-ramp mechanism is the heart of the FDU-S050. Under normal acceleration the ramps lock the clutch basket solidly, transmitting full engine torque to the rear wheel without slip or power loss. The moment the engine begins to over-run on a downshift — a scenario that sends stock clutches into a chattering, wheel-hopping frenzy — the ramps disengage proportionally, allowing the clutch to slip just enough to smooth out the drivetrain spike. The result is a rear tyre that stays in contact with the track surface instead of skipping off it.\u003c\/p\u003e\u003cp\u003eThe integrated diaphragm spring prevents the pressure plate from teetering under high-rpm conditions, translating directly into a clutch lever pull that feels linear and predictable rather than vague or snatchy. Riders stepping from a standard wet clutch to the STM unit consistently report that the feedback through the lever alone justifies the upgrade.\u003c\/p\u003e\u003ch2\u003ePerformance on Track and Road\u003c\/h2\u003e\u003cp\u003eOn the circuit, the FDU-S050 transforms the Panigale 1299's corner-entry behaviour. Carrying more speed deeper into braking zones becomes viable because the chassis remains settled; highside moments that previously lurked at the edge of the envelope are substantially defused. The weight reduction of approximately 0.7-0.8 kg from rotating mass is not a marketing abstraction — lower rotational inertia means the engine revs more freely, responds faster to throttle inputs, and returns to idle more crisply between gear changes. For riders chasing lap times or simply wanting a more connected, less stressful experience in sport riding, the cumulative effect is real and immediately noticeable.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis slipper clutch is engineered as a direct replacement for the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDucati Panigale 1299 (2015-2018)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1299 S (2015-2018)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFDU-S050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eDucati Panigale 1299 \/ 1299 S (2015-2018)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlipper mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring type\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.7-0.8 kg (rotating mass reduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eTrack and sport road riding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705798410,"sku":"FDU-S050","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_de82b46d-da1e-4e5a-a399-abeba4c977a8.png?v=1780811728"},{"product_id":"stm-anti-hopping-kupplung-ducati-fdu-s100","title":"STM Slipper Clutch for Ducati Panigale V4 \/ V4 S (2018-2026) – FDU-S100","description":"\u003cp\u003eThe STM FDU-S100 slipper clutch is a race-derived upgrade engineered specifically for the Ducati Panigale V4 and V4 S. Built around STM's patented ball-ramp mechanism, it delivers the precise, progressive back-torque limiting performance that separates a composed corner entry from a catastrophic highside — whether you're chasing lap times at the track or pressing hard on challenging road routes.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp slipper mechanism provides accurate, consistent anti-hopping control under hard trail-braking and aggressive downshifts.\u003c\/li\u003e\n\u003cli\u003eMinimised trigger impulse dramatically reduces highside risk by smoothing rear-wheel lock-up before it can escalate.\u003c\/li\u003e\n\u003cli\u003eControlled sliding becomes a repeatable, manageable technique rather than a random event — critical for track-day riders and racers alike.\u003c\/li\u003e\n\u003cli\u003eOptimised engagement phase prevents the motorcycle from pitching forward (dive) mid-corner, preserving chassis balance and rider confidence.\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring ensures even, judder-free clutch release with no pressure-plate wobble, giving a consistent bite point every time.\u003c\/li\u003e\n\u003cli\u003eReduction in rotating mass of up to 0.8 kg over the stock assembly, contributing to sharper acceleration response and improved agility.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRacing Technology on the Road\u003c\/h2\u003e\u003cp\u003eSTM's ball-ramp geometry is the result of years of competition development across Italian and European racing series. The ramp angles are tuned specifically for the Panigale V4's high-output Desmosedici Stradale V4 engine character — an engine known for its aggressive engine-braking behaviour at the top of its rev range. By replacing the factory clutch basket and pressure plate assembly with the FDU-S100, riders gain a system that actively manages rear-wheel torque rather than simply absorbing it.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring design eliminates the inconsistency common in traditional coil-spring clutch setups. Pull weight at the lever stays predictable across the full operating temperature range, which matters enormously during long race stints or multi-session track days when muscle fatigue begins to affect feel.\u003c\/p\u003e\u003ch2\u003eBuild Quality\u003c\/h2\u003e\u003cp\u003eSTM manufactures the FDU-S100 from premium lightweight alloys selected for the combination of strength, wear resistance and low inertia. Every component is produced to tight tolerances in Italy, consistent with the brand's reputation across MotoGP, WorldSBK and national Superbike paddocks. The result is a clutch assembly that is notably lighter than stock, more durable under sustained high-temperature operation, and fully rebuildable — reducing long-term ownership cost for serious racers.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FDU-S100 is a direct-fit replacement slipper clutch designed for the following motorcycles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDucati Panigale V4 — model years 2018 to 2026\u003c\/li\u003e\n\u003cli\u003eDucati Panigale V4 S — model years 2018 to 2026\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAlways verify your specific model year and variant before fitting. If you are unsure of compatibility, contact the Inter-Pace team for confirmation before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eFDU-S100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTechnology\u003c\/th\u003e\n\u003ctd\u003ePatented ball-ramp mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpring Type\u003c\/th\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight Saving\u003c\/th\u003e\n\u003ctd\u003eUp to 0.8 kg reduction in rotating mass vs. stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eDucati Panigale V4 \/ V4 S (2018-2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eItaly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705896714,"sku":"FDU-S100","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_c5856661-5473-4312-8339-4137c809132e.png?v=1780811729"},{"product_id":"stm-fhn-s060","title":"STM Slipper Clutch Honda CBR 600 RR (2003-2018) FHN-S060","description":"\u003cp\u003ePrecision-engineered from the ground up for track-focused riders, the STM slipper clutch for the Honda CBR 600 RR (2003-2018) represents a genuine step forward in clutch technology. Built around STM's patented ball-ramp mechanism and a diaphragm spring pressure plate, this unit delivers measurably better rear-wheel control under hard braking and aggressive downshifts — without compromise on feel or reliability.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp anti-hopping mechanism controls the clutch engagement phase precisely, eliminating the engine overrun that causes rear-wheel hop during downshifts\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring pressure plate prevents pressure plate flutter, giving the rider a cleaner, more progressive clutch lever release at the wrist\u003c\/li\u003e\n\u003cli\u003eReduced rotating mass of approximately 0.7–0.8 kg versus the stock clutch assembly improves throttle response and overall drivetrain feel\u003c\/li\u003e\n\u003cli\u003eControlled rear-wheel slide becomes accessible and predictable — invaluable for track riding and high-speed cornering exits\u003c\/li\u003e\n\u003cli\u003eSignificantly reduces the trigger impulse of a highside, raising the safety margin when the rear steps out\u003c\/li\u003e\n\u003cli\u003eBetter control over the clutch closing phase in corners prevents the front end from tucking on corner entry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Engineering\u003c\/h2\u003e\u003cp\u003eSTM designs and manufactures this slipper clutch with the exacting standards expected of Italian racing componentry. The ball-ramp geometry is a patented design — not an aftermarket approximation — and every component is produced to tight tolerances to ensure the anti-hopping function remains consistent across thousands of track kilometres. The diaphragm spring is central to the unit's refined feel: where conventional coil-spring clutches can allow the pressure plate to wobble under hard use, the diaphragm design keeps everything centred, maintaining consistent clamping force and lever feedback throughout the ride.\u003c\/p\u003e\u003cp\u003eThe substantial reduction in rotating mass is a direct consequence of the more compact, purpose-built architecture. Shedding approximately 0.7–0.8 kg from the clutch assembly has a real effect on how quickly the CBR 600 RR revs, how the engine responds between gear changes, and how planted the chassis feels through quick direction changes.\u003c\/p\u003e\u003ch2\u003eOn Track and On Road\u003c\/h2\u003e\u003cp\u003eFor circuit riders, the STM FHN-S060 is a foundational upgrade — one that removes an entire category of instability from the equation. Late braking into slow corners becomes less fraught, and the controlled slide behaviour it permits gives experienced riders confidence to use all available traction. For road riders who push on sporting routes, the highside risk reduction alone justifies the investment. The improved clutch closing control in corners is equally relevant on public roads where mid-corner throttle adjustments are unavoidable.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is a direct fitment for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHonda CBR 600 RR — all variants, model years 2003 to 2018\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eFHN-S060\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eHonda CBR 600 RR (2003–2018)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAnti-Hopping Mechanism\u003c\/th\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePressure Plate Design\u003c\/th\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight Saving\u003c\/th\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg vs. stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntended Use\u003c\/th\u003e\n\u003ctd\u003eTrack and high-performance road riding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705929482,"sku":"FHN-S060","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_a4de39ee-3b46-406e-ae0e-22c578666e4d.png?v=1780811729"},{"product_id":"stm-fhn-s080","title":"STM Slipper Clutch Honda CBR 1000 RR (2008-2019) FHN-S080","description":"\u003cp\u003eRooted in decades of Italian racing engineering, the STM slipper clutch for the Honda CBR 1000 RR (2008-2019) represents the kind of precision hardware that separates a street-legal sportsbike from a genuinely track-ready machine. Part number FHN-S080 is a direct-fit replacement that transforms the clutch character of the CBR completely, replacing the factory unit with a system designed to the exacting standards STM have applied to championship-winning machinery for years.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev under hard downshifts, delivering composed, controlled deceleration in place of the unsettling lurch the stock clutch can produce\u003c\/li\u003e\n\u003cli\u003eActively reduces rear wheel hop and skip, improving traction and stability precisely when the bike is most vulnerable — deep into a braking zone\u003c\/li\u003e\n\u003cli\u003eSignificantly lowers the risk of a highside by limiting the triggering impulse that causes sudden, violent rear-wheel grip recovery\u003c\/li\u003e\n\u003cli\u003eAllows a controlled, predictable rear slide — a genuine advantage during aggressive cornering entries and track sessions\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with measurable precision, maintaining consistent behaviour across a wide rpm range\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring replaces the conventional pressure plate, eliminating plate judder and producing a markedly cleaner lever release feel\u003c\/li\u003e\n\u003cli\u003eApproximate weight saving of 0.7–0.8 kg over the OEM unit by reducing rotating mass, directly benefiting acceleration response and overall handling agility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM have been crafting slipper clutches in Italy since the technology first migrated from Grand Prix paddocks to production machinery. The FHN-S080 carries that lineage in every detail — from the close-tolerance machining of the basket and hub to the anodised finish that distinguishes it instantly from the grey anonymity of a standard clutch assembly. This is components-as-craft: functional sculpture that earns its place under the fairing on visual merit alone, before you consider what it does for lap times.\u003c\/p\u003e\u003cp\u003eThe ball-ramp antihopping system is at the heart of STM's design philosophy. Rather than relying on a simple slip mechanism, the patented ramp geometry allows the clutch to modulate lock-up force progressively, matching rear-wheel deceleration to available traction with a finesse that passive systems cannot replicate. The result is a clutch that feels intuitive within a handful of laps, giving the rider the confidence to brake later and harder.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eFor CBR 1000 RR owners who regularly use the bike in a sporting context — whether that means track days, circuit racing or spirited road riding — the slipper function addresses one of the fireblade's few remaining dynamic weaknesses. The improved closure-phase control in cornering also prevents the familiar tucking sensation that can arise when the clutch re-engages mid-corner, a detail that matters enormously at pace. Combined with the rotational mass reduction, the overall effect is a bike that steers more keenly, brakes more predictably and accelerates more crisply out of slow corners.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FHN-S080 is engineered specifically for the Honda CBR 1000 RR across the full 2008 to 2019 model range. Fitment is direct; no modification to the crankcases or primary drive is required. Always verify your exact model year and variant prior to fitting.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2008\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2009\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2010\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2011\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2012\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2013\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2014\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2015\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2016\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2017\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2018\u003c\/li\u003e\n\u003cli\u003eHonda CBR 1000 RR — 2019\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FHN-S080\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (antihopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: Honda CBR 1000 RR (2008–2019)\u003c\/li\u003e\n\u003cli\u003eAntihopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving over OEM: approximately 0.7–0.8 kg\u003c\/li\u003e\n\u003cli\u003eOrigin: Italy\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168705962250,"sku":"FHN-S080","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_08381deb-7f1a-42a3-b281-a3dbf77f1989.png?v=1780811735"},{"product_id":"stm-fkt-s080","title":"STM Slipper Clutch for KTM RC8 1190 (2008-2011) – FKT-S080","description":"\u003cp\u003eEngineered for riders who demand absolute confidence under hard braking and late down-shifts, the STM slipper clutch for the KTM RC8 1190 (2008-2011) transforms the way this V-twin behaves on the way into a corner. Part number FKT-S080 delivers smoother, more predictable clutch engagement all day long — whether you are lapping a circuit or pushing hard on a mountain road — so fatigue stays low and your focus stays on the next apex.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on down-shifts, keeping the rear wheel planted and the chassis composed through corner entry\u003c\/li\u003e\n\u003cli\u003eMinimises rear wheel hop under engine braking, adding measurable stability and traction when it matters most\u003c\/li\u003e\n\u003cli\u003eReduces the trigger impulse of a highside, significantly lowering risk at high speeds and lean angles\u003c\/li\u003e\n\u003cli\u003eEnables controlled rear wheel slide for improved handling balance and more intuitive cornering feel\u003c\/li\u003e\n\u003cli\u003eBetter management of clutch closing phase in bends prevents the front end from tucking under deceleration\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure plate wobble, giving the lever a smoother, more consistent release feel that reduces hand fatigue over a long session\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the anti-hopping function with precision and repeatability at high rpm\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7-0.8 kg through a reduction in rotating mass, sharpening throttle response and overall performance of the RC8 1190\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Technology\u003c\/h2\u003e\u003cp\u003eSTM's slipper clutch technology is trusted at the highest levels of circuit racing, and the FKT-S080 brings that same engineering rigour to the KTM RC8 1190. The patented ball-ramp system is the heart of the design: under normal acceleration the ramps lock the clutch basket solidly for full power transmission, but the moment the drivetrain reverses under aggressive down-shifts, the ramps progressively unload clutch pressure, allowing a controlled slip that absorbs the shock before it reaches the tyre. The diaphragm spring replaces the conventional coil-spring stack, removing pressure plate flutter and delivering a lever pull that feels linear and effortless — a genuine comfort advantage on long track days or spirited road rides where repeated down-shifts accumulate.\u003c\/p\u003e\u003ch2\u003ePerformance on Track and Road\u003c\/h2\u003e\u003cp\u003eOn track, the reduction in rotating mass translates directly into faster response from both engine and chassis — the RC8 1190 feels lighter on its feet and changes direction more willingly. On the road, the anti-hopping function removes the anxiety of a sudden rear wheel skip mid-corner, letting you focus on smooth, committed riding rather than managing unwanted drama from the drivetrain. The result is a clutch that actively makes you a more confident, more consistent rider every time you go out.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis STM slipper clutch is a direct-fit replacement engineered specifically for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eKTM RC8 1190 — model years 2008, 2009, 2010, 2011\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FKT-S080\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: KTM RC8 1190 (2008-2011)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7-0.8 kg reduction in rotating mass\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706060554,"sku":"FKT-S080","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_79d9d8dd-6b53-45a8-b3d9-4ccffa175c59.png?v=1780811737"},{"product_id":"stm-fkw-s050","title":"STM Slipper Clutch Kawasaki ZX-6R \/ 636 \/ RR (2007-2018) FKW-S050","description":"\u003cp\u003eEngineered for riders who demand complete confidence through every downshift, the STM slipper clutch for the Kawasaki ZX-6R, 636 and RR (2007-2018) transforms clutch feel from a source of tension into a genuine advantage. Whether you are threading a fast chicane or braking deep into a hairpin, this unit keeps the rear wheel planted and the bike obediently on line — lap after lap, without fatigue.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEliminates engine over-rev on aggressive downshifts, delivering a smooth, controlled deceleration that keeps your entry line intact\u003c\/li\u003e\n\u003cli\u003eReduces rear-wheel hop to improve traction and stability under trail braking — less drama, more confidence in the saddle\u003c\/li\u003e\n\u003cli\u003eLowers the trigger impulse of a potential highside, significantly reducing risk at high speed and giving the rider a genuine safety margin\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slides for a more progressive, predictable handling balance during spirited riding\u003c\/li\u003e\n\u003cli\u003eImproved clutch-closure control through corners prevents the front end from tucking — a critical benefit when carrying speed mid-turn\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design smooths lever release and eliminates pressure-plate judder, reducing hand fatigue on long track sessions or spirited road rides\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with precision at high revs, providing consistent, repeatable performance every time\u003c\/li\u003e\n\u003cli\u003eSaves approximately 0.7–0.8 kg in rotating mass, reducing drivetrain inertia and sharpening throttle response across the entire rev range\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAll-Day Comfort and Ride Quality\u003c\/h2\u003e\u003cp\u003eOne of the most overlooked benefits of a high-quality slipper clutch is how much more comfortable the riding experience becomes over the course of a full day. The diaphragm spring inside the STM unit requires less lever effort than a standard spring-plate clutch, so your left hand is not fighting the lever at every corner entry. Over a long track day or an extended road run, that reduction in effort adds up to noticeably less arm and hand fatigue — leaving you fresher, sharper and able to ride at your best when it matters most.\u003c\/p\u003e\u003cp\u003eThe improved clutch-closure feel also gives you a cleaner mental picture of what the rear tyre is doing, removing the guesswork that a chattering or hopping wheel creates. That clarity translates directly into greater confidence on corner entry, which is where lap times and riding enjoyment are truly made.\u003c\/p\u003e\u003ch2\u003ePatented Ball-Ramp Technology\u003c\/h2\u003e\u003cp\u003eSTM's patented ball-ramp system is the engineering heart of this clutch. Rather than relying on crude friction-based slippage, the ball ramps meter the degree of clutch disengagement in direct proportion to the level of engine braking force being generated. The result is a progressive, linear response that adapts to each downshift situation — aggressive or gentle — without any sudden release or unexpected rear-end behaviour. At race pace, where margin for error is zero, that precision is the difference between a controlled slide and an uncontrolled moment.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis STM slipper clutch is a direct-fit replacement for the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eKawasaki ZX-6R — 2007 to 2018\u003c\/li\u003e\n\u003cli\u003eKawasaki ZX-6R 636 — 2007 to 2018\u003c\/li\u003e\n\u003cli\u003eKawasaki ZX-6RR — 2007 to 2018\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eFKW-S050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eSlipper \/ anti-hopping clutch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eKawasaki ZX-6R \/ 636 \/ RR (2007–2018)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight Saving\u003c\/th\u003e\n\u003ctd\u003eapprox. 0.7–0.8 kg (rotating mass reduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMechanism\u003c\/th\u003e\n\u003ctd\u003ePatented ball-ramp anti-hopping system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpring Type\u003c\/th\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706126090,"sku":"FKW-S050","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_cb2bc090-5c5e-4d99-ac6b-abe9a2b4bc28.png?v=1780811745"},{"product_id":"stm-fkw-s081","title":"STM Slipper Clutch Kawasaki ZX-10 R\/RR (2004-2026) FKW-S081","description":"\u003cp\u003eWhen tenths of a second matter at the apex, the STM slipper clutch for the Kawasaki ZX-10 R\/RR is the upgrade that separates controlled aggression from dangerous snap. Engineered specifically for the ZX-10 R and ZX-10 RR across every model year from 2004 to 2026, part number FKW-S081 delivers race-proven back-torque limiting with the precision STM's patented ball-ramp technology is renowned for.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp mechanism precisely governs the anti-hopping function, delivering consistent, predictable performance at high rpm — lap after lap\u003c\/li\u003e\n\u003cli\u003eEliminates engine over-rev on downshifts, maintaining rear-wheel traction and keeping the chassis settled under hard braking into corners\u003c\/li\u003e\n\u003cli\u003eMinimises rear-wheel hop and reduces highside trigger impulse, significantly lowering the risk of a crash at speed\u003c\/li\u003e\n\u003cli\u003eEnables controlled rear-wheel slides for confident, sporting cornering without sudden lock-up\u003c\/li\u003e\n\u003cli\u003eImproved clutch-release feel courtesy of a diaphragm spring that eliminates pressure-plate wobble — cleaner engagement in and out of corners\u003c\/li\u003e\n\u003cli\u003eMeaningful weight saving of approximately 0.7–0.8 kg by reducing rotating mass, sharpening throttle response and overall ZX-10 R\/RR performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRace-Engineered Back-Torque Control\u003c\/h2\u003e\u003cp\u003eOn track, the margin between a smooth, fast downshift and a tank-slapper is measured in milliseconds. STM's slipper clutch intervenes the moment back-torque exceeds a calibrated threshold, partially disengaging the clutch pack to allow the rear wheel to spin freely rather than skip or lock. The result is a rear end that stays planted through aggressive corner entries — giving you the confidence to brake later and carry more corner speed.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring design is a step beyond conventional coil-spring slipper clutches. It keeps the pressure plate tracking true under the high centrifugal loads of sustained high-rpm use, translating into a lever feel that is progressive and consistent rather than grabby or vague. Riders moving from a stock Kawasaki clutch will immediately notice both the improved modulation and the reduced lever effort.\u003c\/p\u003e\u003ch2\u003eReduced Rotating Mass for Sharper Performance\u003c\/h2\u003e\u003cp\u003eAt the level of engineering STM applies, every component in the assembly is scrutinised for mass. The FKW-S081 achieves a reduction of approximately 0.7–0.8 kg in rotating mass compared to the standard unit. On a motorcycle as responsive as the ZX-10 R\/RR, that difference is tangible: faster revs on throttle pick-up, crisper engine braking modulation, and a marginal but real improvement in overall lap times. For class racing where homologation allows aftermarket clutches, this is one of the highest-value modifications available.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FKW-S081 slipper clutch is a direct-fit replacement designed exclusively for the Kawasaki ZX-10 R and ZX-10 RR, covering all model years from 2004 through to 2026. Always verify your specific build date and specification against STM's current fitment guide before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eKawasaki ZX-10 R — 2004 to 2026\u003c\/li\u003e\n\u003cli\u003eKawasaki ZX-10 RR — all years within the 2004–2026 range\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eFKW-S081\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eKawasaki ZX-10 R \/ ZX-10 RR (2004–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-Hopping Mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Type\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight Saving\u003c\/td\u003e\n\u003ctd\u003eapprox. 0.7–0.8 kg (rotating mass reduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended Use\u003c\/td\u003e\n\u003ctd\u003eTrack and high-performance road riding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706093322,"sku":"FKW-S081","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_764b3097-dec3-4853-a650-e26e49340652.png?v=1780811744"},{"product_id":"stm-fmw-s040","title":"STM Slipper Clutch for MV Agusta F3 675 (2011-2026) – FMW-S040","description":"\u003cp\u003eEngineered to exacting standards from premium-grade materials, the STM slipper clutch for the MV Agusta F3 675 represents a genuine step forward in clutch technology — one built to handle the stresses of hard track riding while delivering a measurably safer, more controlled downshift every time.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev during aggressive downshifting, maintaining a smooth, composed deceleration phase\u003c\/li\u003e\n\u003cli\u003eReduces rear wheel hop under hard braking, translating directly into improved traction and stability\u003c\/li\u003e\n\u003cli\u003eLowers the trigger impulse of a potential highside, a critical safety gain at elevated speeds\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear wheel slide for superior cornering feel and confidence on track\u003c\/li\u003e\n\u003cli\u003eImproved clutch engagement in corners prevents the front end from tucking under closing throttle\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure plate flutter, giving the rider a cleaner, more progressive feel at the clutch lever\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with precision across the full rev range\u003c\/li\u003e\n\u003cli\u003eSignificant reduction of rotating mass — approximately 0.7–0.8 kg saved — for a direct improvement in throttle response and overall performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePremium Construction\u003c\/h2\u003e\u003cp\u003eSTM's reputation is built on precision engineering, and the FMW-S040 is a clear example of that commitment. The patented ball-ramp system that controls the anti-hopping function is manufactured to tight tolerances, ensuring consistent, repeatable behaviour whether the clutch is cold on a morning warm-up lap or at operating temperature deep into a race session. The diaphragm spring — a design choice that distinguishes STM units from conventional slipper clutches — actively prevents pressure plate wobble, giving riders a level of lever feel rarely found even on factory-prepared machines.\u003c\/p\u003e\u003ch2\u003ePerformance \u0026amp; Handling Gains\u003c\/h2\u003e\u003cp\u003eThe weight saving of approximately 0.7–0.8 kg in rotating mass is not merely a paper figure. On the MV Agusta F3 675, where the engine sits centrally and its rotational inertia influences chassis dynamics, shedding that mass from the clutch assembly noticeably sharpens throttle response and reduces the gyroscopic effect through direction changes. Combined with the slipper mechanism's ability to modulate rear wheel slip rather than simply cutting it, this clutch lets riders trail-brake deeper and carry greater corner-entry speed with real confidence.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThis STM slipper clutch is a direct replacement unit specifically developed for the MV Agusta F3 675 across all model years from 2011 through to 2026 (part number FMW-S040). No additional adapters or modifications are required for fitment to compatible machines.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eMV Agusta F3 675 (2011–2026)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eFMW-S040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKey Technology\u003c\/th\u003e\n\u003ctd\u003ePatented ball-ramp anti-hopping mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpring Type\u003c\/th\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight Saving\u003c\/th\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg reduction in rotating mass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eMV Agusta F3 675 (2011–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntended Use\u003c\/th\u003e\n\u003ctd\u003eRoad sport and track\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706224394,"sku":"FMW-S040","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_3b510df8-9ede-44e5-9416-f6842f8acb5d.png?v=1780811754"},{"product_id":"stm-fmw-s050","title":"STM Slipper Clutch for MV Agusta F3 800 (2013-2026) – FMW-S050","description":"\u003cp\u003eIf you ride the MV Agusta F3 800 hard on the road or take it to the track on weekends, the STM slipper clutch FMW-S050 is one of the most practical and rewarding upgrades you can make. It tames the engine's braking force under hard downshifts, keeps the rear wheel planted, and reduces rider fatigue — all while shaving meaningful rotating mass from the drivetrain.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts for a smooth, composed ride in traffic and on circuit alike\u003c\/li\u003e\n\u003cli\u003eReduces rear wheel hop under hard braking, improving traction and stability in real-world riding conditions\u003c\/li\u003e\n\u003cli\u003eLowers the trigger impulse of a highside, adding a genuine safety margin at speed\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear wheel slide for confidence-inspiring cornering and better feel\u003c\/li\u003e\n\u003cli\u003eImproved clutch closure control through bends prevents the front end from tucking mid-corner\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design gives a cleaner lever release and eliminates pressure-plate flutter\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism manages the anti-hopping function precisely across the rev range\u003c\/li\u003e\n\u003cli\u003eApproximate weight saving of 0.7–0.8 kg over the standard clutch assembly by reducing rotating mass\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEveryday Usability Meets Track Performance\u003c\/h2\u003e\u003cp\u003eIt is easy to assume slipper clutches are purely circuit hardware, but the STM FMW-S050 earns its keep every time you filter through traffic or execute a late, aggressive downshift on a twisting road. The diaphragm spring smooths out lever feel so the clutch engages progressively rather than snapping shut, which makes slow-speed manoeuvring noticeably easier. On track, the ball-ramp anti-hopping system takes over, metering the slip precisely so you can trail the brake deep into a corner without the rear stepping wide or a highside threatening your race.\u003c\/p\u003e\u003ch2\u003eConstruction and Engineering\u003c\/h2\u003e\u003cp\u003eSTM has designed this unit to replace the entire OEM clutch assembly on the F3 800, not merely supplement it. The patented ball-ramp geometry is the heart of the system: as rear-wheel overrun tries to spin the clutch basket faster than the engine, the ramps separate the pressure plate just enough to allow slip, then reapply clamping force the instant drive is restored. The result is predictable, repeatable behaviour that riders can learn and exploit. The weight reduction of approximately 0.7–0.8 kg comes from a combination of lighter materials and a more compact design, lowering rotational inertia so the engine revs more freely and responds more crisply to throttle inputs — a tangible difference on the F3 800's already eager inline-three.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM anti-hopping clutch FMW-S050 is a direct fitment for the MV Agusta F3 800 across all model years from 2013 through 2026. No modifications to the engine casings or gearbox are required for installation.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FMW-S050\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: MV Agusta F3 800 (2013–2026)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eApproximate weight saving: 0.7–0.8 kg versus OEM assembly\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706257162,"sku":"FMW-S050","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_1a057fd1-cda8-4867-becb-b01ec38b8bec.png?v=1780811754"},{"product_id":"stm-fsu-s060","title":"STM Slipper Clutch Suzuki GSX-R 600\/750 (2006-2014) FSU-S060","description":"\u003cp\u003eEngineered from the ground up for high-demand track and sport use, the STM slipper clutch for the Suzuki GSX-R 600\/750 (2006-2014) sets the benchmark for precision clutch technology. Constructed to exacting tolerances with STM's patented ball-ramp mechanism, this unit delivers measurable gains in control, safety, and outright performance — all while shedding approximately 0.7–0.8 kg of rotating mass from the drivetrain.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev under hard downshifting, maintaining a smooth, composed ride at all times\u003c\/li\u003e\n\u003cli\u003eMinimises rear wheel hop and chatter, translating directly into superior traction and stability through braking zones\u003c\/li\u003e\n\u003cli\u003eSignificantly reduces the trigger impulse of a highside, providing a meaningful safety margin at high speeds\u003c\/li\u003e\n\u003cli\u003eEnables controlled rear wheel slides for confident, predictable cornering behaviour\u003c\/li\u003e\n\u003cli\u003eImproved clutch closing phase management in corners prevents the front end from tucking under load\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure plate wobble, delivering a cleaner, more progressive lever release feel\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through reduction of rotating mass, directly improving throttle response and acceleration\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp technology governs the anti-hopping function with precision, maintaining stability even at peak engine speeds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eSTM has built its reputation on clutch components manufactured to race-grade standards, and the FSU-S060 is no exception. Every element of this slipper clutch is produced with tight tolerances that ensure consistent, repeatable operation across countless track sessions or spirited road miles. The patented ball-ramp system is the centrepiece: it modulates the anti-hopping effect progressively rather than abruptly, so the rider always feels in command. The diaphragm spring arrangement adds a further layer of refinement, removing the inconsistency of a traditional coil spring stack and giving the lever a feedback quality that experienced riders immediately notice.\u003c\/p\u003e\u003ch2\u003ePerformance on Track and Road\u003c\/h2\u003e\u003cp\u003eFor GSX-R 600 and GSX-R 750 riders pushing the limits — whether in a club-level race, a track day, or on a fast mountain road — the consequences of rear wheel lock under aggressive downshifting are well understood. The STM FSU-S060 addresses this directly at the source by automatically modulating clutch slip as engine braking torque rises beyond what the rear tyre can absorb. The result is a rear end that remains planted and steerable, corner entry that can be more aggressive, and a meaningful reduction in highside risk. The simultaneous reduction of approximately 0.7–0.8 kg of rotating inertia sharpens throttle response and makes the GSX-R feel more alive through direction changes.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FSU-S060 is a direct-fit slipper clutch developed specifically for the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSuzuki GSX-R 600 (2006–2014)\u003c\/li\u003e\n\u003cli\u003eSuzuki GSX-R 750 (2006–2014)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FSU-S060\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg (reduction of rotating mass)\u003c\/li\u003e\n\u003cli\u003eFitment: Suzuki GSX-R 600 \/ GSX-R 750 (2006–2014)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706289930,"sku":"FSU-S060","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_9c205d83-4f47-4645-8efa-934d94e759e6.png?v=1780811755"},{"product_id":"stm-fsu-s080","title":"STM Slipper Clutch Suzuki GSX-R 1000 (2005-2008) FSU-S080","description":"\u003cp\u003eSTM's slipper clutch for the Suzuki GSX-R 1000 (2005–2008) is the product of decades of Italian race-engineering heritage — a unit developed not as an afterthought but as a precision instrument, designed from the ground up to transform hard-braking, late-apex riding into a controlled, confident art. Part number FSU-S080 slots directly into the GSX-R's drivetrain and brings genuine slipper technology to the street or circuit without compromise.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping the rear wheel planted and the chassis stable under aggressive braking\u003c\/li\u003e\n\u003cli\u003eActively reduces rear wheel hop, improving traction and composure through corner entry\u003c\/li\u003e\n\u003cli\u003eSignificantly lowers the trigger impulse for a highside, adding a critical safety margin at high speeds\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear wheel slide for confident, sports-oriented riding and more precise corner entry handling\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring replaces the conventional pressure plate design, eliminating plate flutter and delivering a smoother, more progressive clutch lever release\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with precision across the full rev range\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg over the stock unit by reducing rotating mass, with measurable gains in throttle response and overall GSX-R 1000 performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM has been supplying clutch systems to World Superbike and MotoGP teams since the early 1990s, and that lineage is visible in every detail of the FSU-S080. The unit is machined from high-grade aluminium billet, finished to the exacting standards that STM's racing customers demand. The architecture centres on STM's patented ball-ramp system — a mechanism that automatically modulates clutch clamping force during deceleration, progressively reducing back-torque rather than fighting it. Where a standard clutch transmits every lock-up impulse straight into the rear wheel, the FSU-S080 absorbs and releases that energy in a controlled ramp, keeping the tyre in contact with the road and the rider in control of the machine.\u003c\/p\u003e\u003ch2\u003eOn the Road and on Track\u003c\/h2\u003e\u003cp\u003eFor road riders who push into corners with commitment, the slipper function eliminates the stomach-dropping moment when an aggressive downshift upsets the chassis mid-corner. For track riders, it is an essential tool — reducing lap times through the ability to trail-brake later, downshift harder, and carry more speed into slow corners without fear of a rear-end snap. The improved closure control through bends also prevents the front end from tucking under engine-braking loads, giving the GSX-R 1000 a composed, predictable feel that builds confidence lap after lap.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM slipper clutch FSU-S080 is a direct-fit replacement for the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSuzuki GSX-R 1000 — model years 2005, 2006, 2007, 2008\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eFSU-S080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eSuzuki GSX-R 1000 (2005–2008)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKey Technology\u003c\/th\u003e\n\u003ctd\u003ePatented ball-ramp slipper mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePressure Plate Design\u003c\/th\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight Saving\u003c\/th\u003e\n\u003ctd\u003eapprox. 0.7–0.8 kg vs. standard clutch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBillet aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntended Use\u003c\/th\u003e\n\u003ctd\u003eRoad and track\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706421002,"sku":"FSU-S080","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_e8e0c044-7728-41de-a9ec-436de53f9b62.png?v=1780811757"},{"product_id":"stm-fsu-s110","title":"STM Slipper Clutch for Suzuki GSX-R 1000 (2009-2023) – FSU-S110","description":"\u003cp\u003eEngineered in Italy and carrying STM's decades-long motorsport heritage, the FSU-S110 slipper clutch for the Suzuki GSX-R 1000 (2009–2023) is a precision-machined replacement that transforms the way the bike behaves under hard braking and aggressive downshifts. Its patented ball-ramp mechanism and diaphragm spring design are the same technology trusted by World Superbike and track-day competitors the world over.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp anti-hopping system delivers measurable precision and stability at high engine speeds, eliminating the vagueness of the stock clutch under race conditions.\u003c\/li\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping rear wheel behaviour composed and predictable entering corners.\u003c\/li\u003e\n\u003cli\u003eMinimises rear-wheel hop and significantly reduces the triggering impulse of a highside — a genuine safety gain at road and track speeds alike.\u003c\/li\u003e\n\u003cli\u003eControlled rear-wheel slide characteristics allow confident, sport-oriented riding with improved feel throughout.\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure-plate wobble, giving the rider a cleaner, more progressive lever release in every corner.\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg over the stock unit by reducing rotating mass — a tangible improvement in throttle response and overall GSX-R 1000 performance.\u003c\/li\u003e\n\u003cli\u003eBetter clutch engagement control mid-corner prevents the chassis from tucking, improving confidence in long, fast bends.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM has been producing slipper clutches since the early days of the technology, and every detail of the FSU-S110 reflects that accumulated knowledge. The basket, hub and pressure plate are machined from high-grade aluminium billet, finished to the exacting standard you would expect from a company whose products appear at the front of European championship grids. The anodised surfaces resist heat discolouration and corrosion, so the clutch looks as purposeful after a season of track days as it does out of the box.\u003c\/p\u003e\u003cp\u003eThe ball-ramp geometry is not an approximation — it is a patented, precisely calibrated design that determines exactly how aggressively the clutch disengages on the overrun. This is the element that separates a true STM unit from cheaper copies: the ramp angle is engineered, not estimated.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eFor road riders who push hard through mountain passes, the FSU-S110 removes the anxiety of an unexpected rear-wheel skip mid-corner. For track riders, the reduction in rotating mass sharpens the GSX-R's response to throttle inputs and makes consistent lap times easier to achieve. The improved lever feel — a direct result of the diaphragm spring — reduces rider fatigue over a long session, allowing concentration to remain where it belongs: the braking markers and apex.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FSU-S110 is a direct-fit slipper clutch designed specifically for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSuzuki GSX-R 1000 — model years 2009 through 2023\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eAlways verify your specific model year before ordering. If you are unsure of compatibility, contact the Inter-Pace team before purchase.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFSU-S110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eSuzuki GSX-R 1000 (2009–2023)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-hopping mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring type\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving vs. stock\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eBillet aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706453770,"sku":"FSU-S110","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_47ca1af4-1979-4750-8d63-834d297efe51.png?v=1780811764"},{"product_id":"stm-ftr-s010","title":"STM Slipper Clutch for Triumph Daytona 675 (2006–2012) – FTR-S010","description":"\u003cp\u003eRiding a Triumph Daytona 675 hard demands a clutch that keeps up with you through every late braking zone and aggressive downshift. The STM slipper clutch (FTR-S010) delivers exactly that — smooth, confidence-inspiring engagement on the road and precise, predictable control on track, all day long without fatigue or drama at the lever.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping the powertrain smooth and the rider in full control through aggressive corner entries\u003c\/li\u003e\n\u003cli\u003eReduces rear wheel hop and chatter under hard deceleration, improving traction and stability where it matters most\u003c\/li\u003e\n\u003cli\u003eLowers the risk of highsider events by limiting the triggering impulse, adding a meaningful safety margin at speed\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear wheel slide for more sporting, fluid cornering behaviour and improved handling feel\u003c\/li\u003e\n\u003cli\u003eBetter clutch closing-phase control in corners prevents the front end tucking, giving you confidence to carry corner speed\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure-plate wobble, delivering a noticeably cleaner, more consistent lever feel across long riding days\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with precision at high revs, a proven STM engineering solution\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through reduced rotating mass, measurably sharpening the Daytona 675's throttle response and acceleration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngineering \u0026amp; Build Quality\u003c\/h2\u003e\u003cp\u003eSTM has long been a benchmark name in aftermarket clutch technology, and the FTR-S010 demonstrates exactly why. The patented ball-ramp system manages back-torque relief with a consistency that mechanical slipper designs often struggle to match. The diaphragm spring replaces the conventional coil-spring stack, eliminating the pressure-plate judder that can make a lever feel vague and tiring over a full track day or a long sport-touring run. Every component is engineered to work in harmony, so the clutch never feels like an afterthought bolted to a standard basket — it is a complete, cohesive system.\u003c\/p\u003e\u003ch2\u003eOn Road and On Track\u003c\/h2\u003e\u003cp\u003eFor road riders, the immediate benefit is a more forgiving downshift character — the Daytona 675's engine braking is managed rather than dumped through the rear tyre, which translates directly into a more planted, relaxed ride even when the pace is high. On track, the advantages compound: controlled slides become repeatable and readable, corner entry lines tighten up, and lap times improve as confidence in rear-end behaviour grows. The weight saving from reduced rotating mass also sharpens initial acceleration out of slow corners, where the 675's inline-three already excels.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThis STM slipper clutch is a direct-fit replacement designed specifically for the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTriumph Daytona 675 (2006–2012)\u003c\/li\u003e\n\u003cli\u003eTriumph Daytona 675 R (2006–2012)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FTR-S010\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eSlipper mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg vs. standard clutch\u003c\/li\u003e\n\u003cli\u003eFitment: Triumph Daytona 675, 2006–2012\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706486538,"sku":"FTR-S010","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_ff2df6bd-c9c9-4c7a-9941-d148a9d22cc5.png?v=1780811764"},{"product_id":"stm-fya-s180","title":"STM Slipper Clutch Yamaha YZF-R3 (2019-2026) FYA-S180","description":"\u003cp\u003eA slipper clutch is one of the most rewarding upgrades you can make to a YZF-R3 — and the STM FYA-S180 delivers that benefit without demanding a race budget or a race schedule. Engineered specifically for the Yamaha YZF-R3 across model years 2019 to 2026, it smooths out every downshift on your favourite back road just as effectively as it does on a circuit, giving you more confidence the moment you tip into a corner.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping the rear wheel planted and the chassis composed during braking\u003c\/li\u003e\n\u003cli\u003eReduces rear-wheel hop to deliver improved traction and stability under hard deceleration\u003c\/li\u003e\n\u003cli\u003eSignificantly lowers the trigger impulse of a highside, making spirited riding meaningfully safer\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slides — a natural advantage for both track days and flowing road sessions\u003c\/li\u003e\n\u003cli\u003eImproves clutch closure control mid-corner, preventing the bike from tucking the front under load\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design smooths the feel at the lever and eliminates pressure-plate wobble for a cleaner release\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the anti-hopping function with precision at high rpm\u003c\/li\u003e\n\u003cli\u003eApproximately 0.7–0.8 kg reduction in rotating mass, noticeably sharpening throttle response and overall performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEveryday Usability\u003c\/h2\u003e\u003cp\u003eWhere many slipper clutches are designed purely for the pits, the STM FYA-S180 is equally at home on a Sunday morning ride. The progressive engagement means town traffic and slow-speed manoeuvring feel natural rather than snatchy, while the weight saving keeps the YZF-R3 feeling nimble and responsive from the moment you pull away. Installation uses the existing basket architecture of the R3, so the learning curve is manageable for a competent home mechanic.\u003c\/p\u003e\u003ch2\u003eTechnology \u0026amp; Build Quality\u003c\/h2\u003e\u003cp\u003eSTM's patented ball-ramp system is the heart of the unit. Under normal throttle-on conditions the ramps lock the clutch pack in full engagement, transmitting drive cleanly. As soon as engine braking forces reverse through the drivetrain — during a rapid downshift or a missed gear — the ramps disengage proportionally, limiting the torque spike that would otherwise spin the rear tyre or snap the chassis sideways. The diaphragm spring replaces the conventional coil-spring stack, producing a more linear lever pull and removing the risk of pressure-plate flutter at sustained high rpm. Every component is manufactured to STM's exacting tolerances, reflecting decades of Italian motorsport engineering applied to a machine that punches well above its displacement.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is a direct-fit replacement designed exclusively for the Yamaha YZF-R3 covering model years 2019 through 2026. No modifications to the engine cases or clutch basket are required. Always verify your specific model year against the part number FYA-S180 before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FYA-S180\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: Yamaha YZF-R3 (2019–2026)\u003c\/li\u003e\n\u003cli\u003eOperating mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg reduction in rotating mass\u003c\/li\u003e\n\u003cli\u003eCountry of manufacture: Italy\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706584842,"sku":"FYA-S180","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_9e14dd83-34ce-4296-8b13-53bf785570c1.png?v=1780811770"},{"product_id":"stm-fya-s160","title":"STM Slipper Clutch Yamaha YZF-R3 (2014-2018) FYA-S160","description":"\u003cp\u003eDesigned for riders who demand smooth, confident control on both road and track, the STM slipper clutch for the Yamaha YZF-R3 (2014-2018) transforms the way the bike behaves under hard braking and aggressive downshifts. Part number FYA-S160, it slots in as a direct replacement and immediately rewards you with a more composed, predictable ride every time you tip into a corner.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping the rear wheel planted and the bike settled through braking zones\u003c\/li\u003e\n\u003cli\u003eReduces rear-wheel hop significantly, translating to better traction and improved stability mid-corner\u003c\/li\u003e\n\u003cli\u003eLowers the trigger impulse for a highside, adding a meaningful safety margin at speed\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slides, giving sport and track riders greater confidence when carrying corner speed\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with precision at high engine speeds, ensuring consistent, repeatable performance\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure-plate chatter, delivering a smoother, more progressive lever release feel that reduces hand fatigue on long rides\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7-0.8 kg through reduced rotating mass, directly improving throttle response and overall YZF-R3 performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngineering Behind the STM Slipper Clutch\u003c\/h2\u003e\u003cp\u003eSTM's proprietary ball-ramp technology is the heart of this assembly. Under normal drive conditions the ramps lock up and transmit full torque, just as a standard clutch would. The moment back-torque exceeds the pre-set threshold during downshifts, the ramps separate the pressure plate fractionally, allowing the engine to decelerate independently of the rear wheel. The result is a rear end that stays calm and steerable rather than snapping sideways.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring replaces the conventional coil-spring stack found in the OEM unit. Beyond the weight saving this change brings a noticeably lighter lever pull that is consistent across the full travel — a real benefit during back-to-back track sessions or spirited road riding where repeated clutch inputs would otherwise leave the left hand fatigued.\u003c\/p\u003e\u003ch2\u003eClutch Engagement and Corner Confidence\u003c\/h2\u003e\u003cp\u003eOne area where the STM unit stands out is its control of the clutch closing phase in corners. By managing how quickly drive is reintroduced, it reduces the tendency for the front end to tuck — a phenomenon known on the circuit as tipping-in understeer triggered by abrupt engagement. This makes the YZF-R3 feel more composed and predictable when you roll the throttle back on mid-bend, whether you are threading through a technical road section or pushing on a track day.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis slipper clutch is engineered as a direct-fit replacement for the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eYamaha YZF-R3 — model years 2014, 2015, 2016, 2017 and 2018\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNo modifications to the engine cases or clutch cover are required. Always verify your specific model year and variant before fitting.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFYA-S160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eYamaha YZF-R3 (2014-2018)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlipper mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring type\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.7-0.8 kg vs OEM (reduced rotating mass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706617610,"sku":"FYA-S160","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_d9b7cf5d-8798-4833-a89b-75cd75f3421f.png?v=1780811771"},{"product_id":"stm-fya-s140","title":"STM Slipper Clutch Yamaha YZF-R1 (2009-2014) FYA-S140","description":"\u003cp\u003eOn the track, the margin between a fast lap and a highside is measured in milliseconds. The STM slipper clutch for the Yamaha YZF-R1 (2009-2014) closes that margin decisively — eliminating rear-wheel hop under hard braking and aggressive downshifts so you can trail-brake later, slide the rear with confidence, and carry more corner speed every single lap.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, delivering a stable, controlled deceleration phase without rear-wheel chatter\u003c\/li\u003e\n\u003cli\u003eSignificantly reduces rear-wheel hop, improving traction and stability under the heaviest braking\u003c\/li\u003e\n\u003cli\u003eLowers the trigger impulse of a highside, increasing safety at race and road speeds alike\u003c\/li\u003e\n\u003cli\u003eEnables controlled rear-wheel slides for sharper, more progressive cornering and improved feel\u003c\/li\u003e\n\u003cli\u003eRefined clutch closing phase in corners actively prevents the front-end tuck associated with abrupt engine braking\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure-plate flutter, giving the lever a smooth, consistent release feel\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the anti-hopping function with precision across the entire rev range\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through reduced rotating mass, directly improving throttle response and acceleration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngineering Behind the Design\u003c\/h2\u003e\u003cp\u003eSTM's ball-ramp anti-hopping system is a genuine racing solution adapted for the street-legal YZF-R1. When the engine overruns the rear wheel — the scenario that causes rear-wheel hop and, at its worst, a highside — the ramp mechanism partially disengages the clutch pack, allowing the rear tyre to maintain contact with the road and the rider to stay in control. The moment drive is reapplied, the clutch re-engages seamlessly, with no lag and no drama.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring replaces the conventional coil-spring arrangement, smoothing out pressure-plate movement and giving the clutch lever a progressive, linear feel that long-distance and track riders alike will appreciate after an hour of hard riding.\u003c\/p\u003e\u003ch2\u003ePerformance Gains on Track and Road\u003c\/h2\u003e\u003cp\u003eThe reduction in rotating mass — roughly 0.7 to 0.8 kg — is one of the less-discussed advantages of the STM unit. On a machine as responsive as the YZF-R1, that saving translates into crisper throttle response and marginally faster acceleration out of slow corners. Combined with the anti-hopping behaviour, the result is a clutch that actively makes you faster rather than simply transmitting power.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is a direct, application-specific fit for the following models:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eYamaha YZF-R1 — 2009, 2010, 2011, 2012, 2013, 2014\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003ePart number FYA-S140 is unique to this fitment. Always verify your model year and variant before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FYA-S140\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: Yamaha YZF-R1 (2009–2014)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg vs. stock (rotating mass reduction)\u003c\/li\u003e\n\u003cli\u003eIntended use: Track and high-performance road riding\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706715914,"sku":"FYA-S140","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_26c8cce3-089d-4888-8a90-12de40d6562a.png?v=1780811781"},{"product_id":"stm-fya-s080","title":"STM Slipper Clutch Yamaha YZF-R6 (2006-2026) FYA-S080","description":"\u003cp\u003eEngineered from the ground up for race and high-performance road use, the STM slipper clutch for the Yamaha YZF-R6 (2006-2026) replaces the standard assembly with a precision-built unit that actively manages rear-wheel behaviour under aggressive downshifts. Patent-protected ball-ramp technology and a diaphragm spring pressure plate separate this clutch from budget alternatives — every component reflects the exacting tolerances STM is renowned for in top-level motorsport.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp mechanism provides precise anti-hopping control at high engine speeds, eliminating the unpredictable snap associated with engine over-run during downshifts\u003c\/li\u003e\n\u003cli\u003eRear-wheel hop is dramatically reduced, restoring traction and chassis stability in the braking zone and through corner entry\u003c\/li\u003e\n\u003cli\u003eHighside trigger impulse is significantly lowered, adding a meaningful safety margin at speed on track and on demanding mountain roads\u003c\/li\u003e\n\u003cli\u003eControlled rear-wheel slide becomes achievable and repeatable, giving confident, adjustable handling when pushing the R6 hard\u003c\/li\u003e\n\u003cli\u003eClutch engagement through corners is smoother and more progressive, preventing the front-end tuck that can follow abrupt re-engagement\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring pressure plate eliminates pressure-plate judder at the lever, delivering a cleaner, more communicative release feel\u003c\/li\u003e\n\u003cli\u003eRotating mass reduction of approximately 0.7–0.8 kg sharpens throttle response and improves overall engine performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eSTM designs and manufactures this slipper clutch with the same philosophy applied to their MotoGP and Superbike supply contracts. The basket, hub and pressure plate are machined from high-grade aluminium alloy, keeping the assembly light while maintaining the structural rigidity needed to handle the R6's power delivery cycle after cycle. The ball-ramp geometry is patent-protected and manufactured to tight tolerances, ensuring the anti-hopping force ramps in consistently rather than varying with wear or temperature. The diaphragm spring replaces the conventional coil-spring stack, eliminating the oscillation that causes pressure-plate judder — a detail that directly translates into the improved lever feel riders notice from the first ride.\u003c\/p\u003e\u003ch2\u003ePerformance on Track and Road\u003c\/h2\u003e\u003cp\u003eOn circuit the benefits are immediate: corner-entry confidence rises because the rider no longer has to manage a chattering rear wheel while also hitting the apex. Braking points can be pushed deeper and downshifts completed more decisively. The weight saving from reduced rotating mass also accelerates throttle response out of slow corners, where the R6's mid-range delivery is already strong. On the road the same qualities translate into a less fatiguing ride in technical terrain — smoother downshifts, better traction on exit and a lever action that stays consistent across a long day in the saddle.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis slipper clutch is a direct replacement for the standard clutch assembly on the Yamaha YZF-R6 across the full production run from 2006 to 2026. Part number FYA-S080 confirms the correct specification; always verify against your model year before ordering.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eYamaha YZF-R6 (2006–2026)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eFYA-S080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eYamaha YZF-R6 (2006–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAnti-hopping mechanism\u003c\/th\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePressure plate\u003c\/th\u003e\n\u003ctd\u003eDiaphragm spring design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight saving\u003c\/th\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg (reduction in rotating mass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntended use\u003c\/th\u003e\n\u003ctd\u003eTrack and high-performance road riding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706748682,"sku":"FYA-S080","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_da5ca5ed-ed4e-4ddf-849c-3e4a5bb4e980.png?v=1780811781"},{"product_id":"stm-fya-s120","title":"STM Slipper Clutch for Yamaha YZF-R1 (2007-2008) – FYA-S120","description":"\u003cp\u003eWhether you're threading through weekend mountain roads or pushing hard on track days, the STM slipper clutch for the Yamaha YZF-R1 (2007-2008) delivers a level of rear-wheel composure and clutch feel that the standard unit simply cannot match. Part number FYA-S120, it is a direct, practical upgrade that pays dividends every time you brake hard into a corner.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on aggressive downshifts, keeping the rear wheel settled and the chassis stable under hard braking\u003c\/li\u003e\n\u003cli\u003eReduces rear-wheel hop and chatter, improving traction and confidence through the corner entry phase\u003c\/li\u003e\n\u003cli\u003eLowers the trigger impulse for highsider incidents, adding a meaningful safety margin during fast, committed riding\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slide for a more fluid, adjustable cornering style\u003c\/li\u003e\n\u003cli\u003eImproved clutch engagement feel in corners — the diaphragm spring eliminates pressure-plate judder for a smoother, more progressive release\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through reduced rotating mass, sharpening throttle response and overall performance on the YZF-R1\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with precision at high engine speeds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngineering and Build Quality\u003c\/h2\u003e\u003cp\u003eSTM is one of the most respected names in aftermarket clutch technology, with decades of racing pedigree feeding directly into their road and track product range. The FYA-S120 is engineered to OEM fitment standards, meaning installation is straightforward and no additional modifications to the clutch basket or actuation system are required. The patented ball-ramp design is the heart of the system: under deceleration, the ramps allow the clutch to partially disengage proportionally to the degree of engine braking, preventing the rear tyre from locking or hopping without removing drive entirely. When you open the throttle again, the ramps re-engage the clutch smoothly and instantly.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring replaces the conventional coil-spring stack, eliminating the plate flutter that causes the harsh, inconsistent feel many riders notice in the standard clutch at high rpm. The result is a lever pull that is lighter, more progressive, and far easier to modulate — a benefit that is just as noticeable on a spirited road ride as it is on circuit.\u003c\/p\u003e\u003ch2\u003eEveryday Usability and Real-World Value\u003c\/h2\u003e\u003cp\u003eIt is easy to assume a slipper clutch is only relevant if you are chasing lap times. In practice, the FYA-S120 earns its keep every ride. Stop-start traffic, aggressive overtakes with rapid gear changes, and unfamiliar roads where braking points are uncertain — all of these scenarios become less stressful when the rear wheel is no longer a variable you need to manage consciously. The weight reduction also has a perceptible effect on the engine's willingness to rev, making the YZF-R1 feel lighter and more responsive without any other modification.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is a precise fit for the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eYamaha YZF-R1 — model years 2007 and 2008\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eAlways confirm your frame and engine number against the fitment data before ordering if your machine has been modified or has a non-standard engine specification.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eFYA-S120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eYamaha YZF-R1 (2007–2008)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSlipper Mechanism\u003c\/th\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpring Type\u003c\/th\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight Saving\u003c\/th\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg (reduced rotating mass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eEngine and clutch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706781450,"sku":"FYA-S120","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_93100b4d-8b13-4b87-85a2-5e8ac78aa5a7.png?v=1780811783"},{"product_id":"stm-fya-s170","title":"STM Slipper Clutch Yamaha YZF-R1\/M RN32, RN49 \u0026 RN65 (2015-2026) FYA-S170","description":"\u003cp\u003eEngineered from the ground up for the demands of track and high-performance road riding, the STM slipper clutch for the Yamaha YZF-R1\/M (RN32, RN49 \u0026amp; RN65, 2015-2026) is a precision Italian component that fundamentally transforms clutch behaviour under hard braking and aggressive downshifts. Where the stock unit can allow the rear wheel to hop and the engine to over-rev on corner entry, the STM unit draws on patented ball-ramp technology and a diaphragm spring pressure plate to restore composure and put the rider firmly in control.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp mechanism precisely governs the anti-hopping function, maintaining clutch engagement consistency at high rpm without the harshness associated with conventional ramp systems.\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring pressure plate eliminates pressure-plate wobble and delivers a smoother, more progressive feel as the clutch lever is released — a tangible improvement over the OEM setup.\u003c\/li\u003e\n\u003cli\u003ePrevents rear-wheel hop on aggressive downshifts, substantially improving traction and stability on corner entry.\u003c\/li\u003e\n\u003cli\u003eReduces highsider trigger impulse at speed, adding a meaningful safety margin during late, hard braking.\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slides, enabling the rider to exploit the YZF-R1\/M's power with greater confidence in the sportier portion of the rev range.\u003c\/li\u003e\n\u003cli\u003eSignificant rotating mass reduction of approximately 0.7–0.8 kg over the stock clutch assembly, contributing to sharper engine response and faster revving.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality \u0026amp; Materials\u003c\/h2\u003e\u003cp\u003eSTM is an Italian manufacturer with decades of motorsport heritage, supplying clutch systems to World Superbike and Moto2 teams. Every component in the FYA-S170 kit reflects that pedigree: close-tolerance machined aluminium basket and hub, hardened ramp surfaces, and springs rated for sustained track-day abuse. The construction is designed not merely to function, but to remain consistent lap after lap — something the OEM clutch cannot guarantee under repeated aggressive use.\u003c\/p\u003e\u003ch2\u003eOn Track and On Road\u003c\/h2\u003e\u003cp\u003eFor riders pushing their YZF-R1 or R1M hard at the circuit, the benefits are immediately apparent. The rear wheel no longer skips unpredictably under trail braking, the engine reacts cleanly to blipped downshifts, and the closing phase of the clutch in corners is far more manageable — preventing the front-end dive that can unsettle the chassis at the worst possible moment. On road, the same qualities translate to greater confidence in unexpected situations where rapid downshifting is unavoidable.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FYA-S170 is a direct fitment for the following Yamaha models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eYamaha YZF-R1 RN32 (2015–2016)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1M RN32 (2015–2016)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1 RN49 (2017–2019)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1M RN49 (2017–2019)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1 RN65 (2020–2026)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1M RN65 (2020–2026)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FYA-S170\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: Yamaha YZF-R1\/M RN32, RN49 \u0026amp; RN65 (2015–2026)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003ePressure plate: Diaphragm spring design\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg versus OEM rotating assembly\u003c\/li\u003e\n\u003cli\u003eIntended use: Track and high-performance road riding\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706879754,"sku":"FYA-S170","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_435fc7bc-1ef9-4f66-896e-92319c2188e7.png?v=1780811783"},{"product_id":"stm-ktt-1300","title":"STM EVO GP Dry Clutch for BMW S1000RR K46 (2009-2018) – KTT-1300","description":"\u003cp\u003eFew components define a superbike's character as completely as its clutch, and the STM EVO GP dry clutch for the BMW S1000RR K46 (2009-2018) is the definitive upgrade for riders who demand race-bred precision. Engineered to replace the factory wet clutch entirely, this is a system shaped by STM's long pedigree in top-tier motorsport — refined in design, purposeful in finish, and immediate in the performance gains it delivers.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplaces the standard wet clutch with a race-specification dry clutch, reducing power loss through the drivetrain and improving acceleration out of corners.\u003c\/li\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping throttle response controlled and predictable at high speed.\u003c\/li\u003e\n\u003cli\u003eReduces rear-wheel hop under braking, improving traction and stability in the most demanding conditions.\u003c\/li\u003e\n\u003cli\u003eLowers the trigger impulse of a potential highside, adding a meaningful safety margin when riding at the limit.\u003c\/li\u003e\n\u003cli\u003eEnables controlled rear-wheel slides, giving experienced riders greater handling finesse on track.\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with exceptional precision, calibrated for high-rpm operation.\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure-plate judder, delivering a cleaner, more tactile feel through the clutch lever during engagement and release.\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through a significant reduction in rotating mass, sharpening throttle response and overall performance of the S1000RR.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM has built its reputation across decades of supplying dry clutch systems to privateer and factory race teams alike. The EVO GP represents the pinnacle of that heritage — a component that looks as purposeful as it performs. The precision-machined basket, covers and internals carry the unmistakable aesthetic of a true racing dry clutch, and the overall assembly reflects the same exacting standards demanded by the world's most competitive circuits. Installing the KTT-1300 is not merely a performance upgrade; it is a statement of intent about how the BMW S1000RR is ridden.\u003c\/p\u003e\u003ch2\u003ePerformance and Control\u003c\/h2\u003e\u003cp\u003eThe core advantage of a dry clutch over the factory wet unit lies in the direct connection it establishes between the engine and the gearbox. By eliminating the drag and parasitic losses inherent to an oil-bath clutch, the STM EVO GP allows more of the S1000RR's power to reach the rear wheel. The slipper function — controlled through STM's patented ball-ramp system — manages back-torque with a level of refinement that a standard slipper clutch cannot match, making the bike dramatically easier to manage mid-corner under hard braking. The improved clutch-closure control in corners also prevents the front end from tucking, a critical safety benefit on fast, flowing circuits.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM EVO GP dry clutch KTT-1300 is designed specifically to fit the BMW S1000RR K46 produced between 2009 and 2018. It is a direct replacement for the OEM wet clutch assembly on all K46-generation S1000RR models across that production run.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003eModel: EVO GP Dry Clutch\u003c\/li\u003e\n\u003cli\u003ePart number: KTT-1300\u003c\/li\u003e\n\u003cli\u003eType: Dry clutch (replaces OEM wet clutch)\u003c\/li\u003e\n\u003cli\u003eFits: BMW S1000RR K46 (2009–2018)\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg (reduction in rotating mass)\u003c\/li\u003e\n\u003cli\u003eSlipper mechanism: patented ball-ramp anti-hopping system\u003c\/li\u003e\n\u003cli\u003eSpring type: diaphragm spring pressure plate\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168706912522,"sku":"KTT-1300","price":3307.78,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/KTT-1300.png?v=1780811793"},{"product_id":"stm-evo-gp-trockenkupplung-ducati-panigale-1199-1299-ktt-0500","title":"STM EVO GP Dry Clutch for Ducati Panigale 1199\/1299 – KTT-0500","description":"\u003cp\u003eReplacing the factory wet clutch with the STM EVO GP dry clutch is one of the most effective performance and drivability upgrades available for the Ducati Panigale 1199 and 1299. Designed for riders who want sharper throttle response and more confident corner exits on both road and track, this kit brings genuine racing technology to everyday sport riding — backed by STM's patented ball-ramp anti-hopping system and a 40-tooth outer basket with additional cooling fins for superior heat dissipation.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduced power loss compared to the OEM wet clutch, translating directly into improved acceleration out of corners\u003c\/li\u003e\n\u003cli\u003e40-tooth outer basket with extra cooling fins (Z40 Basket design) for enhanced thermal management under sustained hard use\u003c\/li\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, delivering a stable and controlled ride in both road and track conditions\u003c\/li\u003e\n\u003cli\u003eMinimises rear-wheel hop for improved traction and stability when braking hard into turns\u003c\/li\u003e\n\u003cli\u003eReduces the trigger impulse of a potential highside, adding a meaningful safety margin at high speeds\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slides, ideal for sport riding and track sessions where precise throttle modulation matters\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring eliminates pressure-plate wobble, giving a smoother, more progressive clutch-lever feel\u003c\/li\u003e\n\u003cli\u003eSignificant weight saving of approximately 0.7–0.8 kg through reduced rotating mass, improving overall bike responsiveness\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp technology governs the anti-hopping function for precise, repeatable control at high engine speeds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Technology\u003c\/h2\u003e\u003cp\u003eThe EVO GP sits at the top of STM's Panigale-specific clutch range. Where the EVO SBK variant is built around a standard basket, the EVO GP specifies a 40-tooth outer basket — the same Z40 configuration used in top-level endurance and superbike competition — with machined cooling fins that draw heat away from the friction surfaces far more efficiently. This matters most during repeated hard stops and extended track sessions, where a conventional clutch would begin to fade.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring replaces the conventional coil-spring stack, eliminating the plate chatter and torsional wobble that can make a dry clutch feel harsh at low speeds. The result is a clutch that is engaging and progressive when you need finesse — filtering traffic or threading through a slow chicane — yet crisp and decisive when you open the throttle on exit.\u003c\/p\u003e\u003ch2\u003ePerformance and Everyday Usability\u003c\/h2\u003e\u003cp\u003eSTM engineered the EVO GP to serve riders who use their Panigale in the real world as much as on circuit. The anti-hopping ball-ramp system controls clutch closure in corners, preventing the front-end tuck that an aggressive engine-braking event can provoke on a high-compression twin. Combined with the weight reduction of roughly 0.7–0.8 kg in rotating mass, the bike steers more keenly and revs more freely — benefits felt on a Sunday morning blast as much as on a lap timer.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM EVO GP dry clutch KTT-0500 is a direct replacement for the OEM wet clutch on the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDucati Panigale 1199 (2012–2015)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1199 S (2012–2015)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1199 R (2013–2015)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1299 (2015–2017)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1299 S (2015–2017)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003eModel: EVO GP dry clutch\u003c\/li\u003e\n\u003cli\u003ePart number: KTT-0500\u003c\/li\u003e\n\u003cli\u003eOuter basket: 40-tooth (Z40) with additional cooling fins\u003c\/li\u003e\n\u003cli\u003eAnti-hopping system: patented ball-ramp mechanism\u003c\/li\u003e\n\u003cli\u003eSpring type: diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg (rotating mass reduction)\u003c\/li\u003e\n\u003cli\u003eFitment: Ducati Panigale 1199 \/ 1299\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168707109130,"sku":"KTT-0500","price":3053.1,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/KTT-0500.png?v=1780811795"},{"product_id":"stm-ktt-0400","title":"STM EVO SBK Dry Clutch for Ducati Panigale 1199\/1299 - KTT-0400","description":"\u003cp\u003eBorn on the Superbike circuit and engineered to replace the Panigale's stock wet clutch entirely, the STM EVO SBK dry clutch is a statement of intent for riders who demand total drivetrain authority on track and at speed. Its heritage runs through Italian Superbike racing, and every detail — from the patented ball-ramp slipper mechanism to the diaphragm pressure plate — reflects that competition DNA.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEliminates wet clutch power losses for sharper, more immediate acceleration out of every corner\u003c\/li\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping the rear wheel planted and exits clean\u003c\/li\u003e\n\u003cli\u003eReduces rear wheel hop under hard deceleration, delivering improved traction and chassis stability\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp technology governs the slipper action with precision at high rpm, giving the rider genuine feedback rather than a binary on\/off response\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring pressure plate eliminates pressure plate wobble for a more progressive, consistent clutch release feel at the lever\u003c\/li\u003e\n\u003cli\u003eReduces the triggering impulse of a highside, a genuine safety gain at race speeds\u003c\/li\u003e\n\u003cli\u003eControlled rear wheel slide becomes manageable and predictable — an essential quality for confident track riding\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through reduced rotating mass, directly benefiting acceleration and corner-entry response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM has been synonymous with Italian dry clutch craftsmanship for decades, and the EVO SBK carries that lineage forward. The assembly showcases the precision machining and finish quality that made STM the default choice for factory-supported Superbike teams. Every component is produced to exacting tolerances, and the unit is designed as a direct replacement — no custom fabrication required — so the aesthetic transformation from a buried wet clutch to an exposed, purposeful dry clutch assembly is as rewarding as the performance gain.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eSwitching to a dry clutch on the Ducati Panigale 1199 or 1299 changes the character of the machine in ways that go beyond simple numbers. The reduction in rotating mass sharpens throttle response and gives the engine a more eager, rev-hungry feel. On track, the slipper function keeps the rear tyre in contact with the tarmac through aggressive downshifts, while the improved closure-phase control in corners prevents the unsettling tuck-in that a standard wet clutch can produce. On the road, the progressive lever feel makes spirited riding more manageable and fatigue over a long sporting session noticeably lower.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM EVO SBK dry clutch with part number KTT-0400 fits the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDucati Panigale 1199 (2012–2014)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1199 S (2012–2014)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1199 R (2013–2014)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1299 (2015–2018)\u003c\/li\u003e\n\u003cli\u003eDucati Panigale 1299 S (2015–2018)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003eModel: EVO SBK Dry Clutch\u003c\/li\u003e\n\u003cli\u003ePart number: KTT-0400\u003c\/li\u003e\n\u003cli\u003eType: Dry clutch assembly replacing OEM wet clutch\u003c\/li\u003e\n\u003cli\u003eSlipper mechanism: Patented ball-ramp anti-hopper\u003c\/li\u003e\n\u003cli\u003ePressure plate: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg (reduced rotating mass)\u003c\/li\u003e\n\u003cli\u003eFitment: Ducati Panigale 1199 \/ 1299 (2012–2018)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168707141898,"sku":"KTT-0400","price":2790.13,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/KTT-0400.png?v=1780811799"},{"product_id":"stm-fhn-s170","title":"STM Slipper Clutch Honda CBR 1000 RR-R SC82 (2020-2026) FHN-S170","description":"\u003cp\u003eBorn from decades of Italian racing heritage, the STM slipper clutch for the Honda CBR 1000 RR-R SC82 represents the pinnacle of clutch engineering — a precision-crafted assembly distinguished by its patented ball-ramp mechanism and a design philosophy refined on the world's most demanding circuits. Where the factory clutch compromises, this unit excels: controlling rear-wheel behaviour, reducing rotating mass, and giving the rider a confident, communicative clutch action from the first lap to the last.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEliminates engine over-rev on aggressive downshifts, maintaining smooth, controlled deceleration through corners\u003c\/li\u003e\n\u003cli\u003eActively suppresses rear-wheel hop and chatter, delivering improved traction and rear-end stability under braking\u003c\/li\u003e\n\u003cli\u003eReduces the trigger impulse of a highside, significantly improving safety during track and spirited road use\u003c\/li\u003e\n\u003cli\u003eEnables controlled rear-wheel slides for cleaner corner entries and more intuitive handling balance\u003c\/li\u003e\n\u003cli\u003eImproved clutch engagement feel on corner exit, preventing the machine from tucking the front under closing throttle\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure-plate judder, giving a progressive, flutter-free lever release\u003c\/li\u003e\n\u003cli\u003eSaves approximately 0.7–0.8 kg of rotating mass compared to the stock clutch, sharpening throttle response and overall performance\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp anti-hopping technology delivers precise, repeatable slipper action with no compromise to drive engagement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM has been manufacturing slipper clutches in Italy since the early years of World Superbike, supplying factory and satellite teams across MotoGP, WSBK and national championships. That race-department DNA flows directly into every road and track unit the brand produces. The FHN-S170 is machined from high-grade aluminium billet, anodised to a finish that resists heat, oil and abrasion across sustained track sessions. Every component — from the ball-ramp assembly to the diaphragm spring — is manufactured and inspected in-house, ensuring the tolerances and surface quality that a high-revving litre-class machine demands. The result is a clutch that looks as purposeful as it performs, worthy of the CBR 1000 RR-R's race-replica status.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eThe Honda CBR 1000 RR-R SC82 is one of the most aggressive production motorcycles ever built, with engine braking characteristics that can unsettle the rear tyre on tight downshifts. The STM FHN-S170 addresses this directly: under deceleration the ball-ramp geometry allows the clutch to partially disengage, metering engine braking torque to a level the rear tyre can absorb without skipping or stepping out. Under acceleration the ramp re-engages with full clamping force, so drive is never compromised. The diaphragm spring further refines the feel at the lever, making slow-speed and pit-lane manoeuvres as smooth as they are on an open circuit blast.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is engineered specifically for the Honda CBR 1000 RR-R SC82 covering model years 2020 through to 2026. No modifications to the engine casings are required. Always verify your exact build date and variant before installation, and follow the manufacturer's fitting instructions.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHonda CBR 1000 RR-R SC82 (2020–2026)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFHN-S170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper \/ anti-hopping clutch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eHonda CBR 1000 RR-R SC82 (2020–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-hopping mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring type\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.7–0.8 kg (rotating mass reduction vs. stock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eBillet aluminium, anodised\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eItaly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168713367818,"sku":"FHN-S170","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_711997c5-7f8e-47ee-9db4-f6fcac8368c5.png?v=1780812109"},{"product_id":"stm-fap-s060","title":"STM Slipper Clutch for Aprilia RS 660 (2020–2026) – FAP-S060","description":"\u003cp\u003eWhether you ride daily, carve canyon roads at the weekend, or occasionally head to the track, the STM slipper clutch for the Aprilia RS 660 delivers a tangible, ride-every-day upgrade: smoother downshifts, a more settled rear end, and a meaningful reduction in highside risk — all in a single bolt-on fitment. Part number FAP-S060 is engineered specifically for the RS 660 (2020–2026) and sheds approximately 0.7–0.8 kg of rotating mass in the process, making it one of the most well-rounded clutch upgrades available for this platform.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, protecting against unwanted rpm spikes and driveline snatch\u003c\/li\u003e\n\u003cli\u003eReduces rear wheel hop under hard braking and trail-braking, improving traction and stability in everyday riding as well as on track\u003c\/li\u003e\n\u003cli\u003eSubstantially lowers the triggering impulse of a highside, adding a genuine safety margin at all riding speeds\u003c\/li\u003e\n\u003cli\u003eEnables controlled rear wheel slide during spirited riding without losing composure\u003c\/li\u003e\n\u003cli\u003eImproved clutch engagement feel in corners, reducing the risk of front-end tuck when releasing the lever mid-bend\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design prevents pressure plate flutter, resulting in a noticeably cleaner lever release\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the anti-hopping function with precision, even at high engine speeds\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through reduced rotating mass — a measurable gain felt in throttle response and engine braking feel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Technology\u003c\/h2\u003e\u003cp\u003eSTM has been producing slipper clutches for road and race use for decades, and the FAP-S060 reflects that depth of experience. The patented ball-ramp system is the centrepiece of the design: as engine braking torque exceeds a calibrated threshold during downshifts, the ramps allow the clutch basket to partially disengage, bleeding off excess torque before it can upset the rear tyre. Once braking loads normalise, the clutch closes cleanly and progressively. This is not a crude slip mechanism — it is a controlled, repeatable function that makes the RS 660 noticeably more forgiving to ride quickly.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring replaces the conventional coil-spring stack, eliminating the pressure plate oscillation that can cause a spongy or inconsistent lever feel. The result is a more direct, confidence-inspiring pull from the first ride.\u003c\/p\u003e\u003ch2\u003eRoad and Track Use\u003c\/h2\u003e\u003cp\u003eFor riders who use their RS 660 as a genuine daily machine, the benefits are immediately apparent in stop-and-go traffic and on twisty B-roads where frequent gear changes are the norm. The reduced effort at the lever and smoother power delivery make the bike less tiring to ride. On track or on a spirited mountain pass, the slipper function and the weight saving combine to lift the overall experience well beyond what the standard clutch can offer. The approximately 0.7–0.8 kg reduction in rotating mass lightens the flywheel effect, sharpening throttle response and making the engine feel more free-revving throughout the rev range.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FAP-S060 slipper clutch is a direct fitment for the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eAprilia RS 660 — model years 2020 to 2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNo frame modifications or additional brackets are required. Always verify your exact model year and engine specification before ordering, and follow STM's installation instructions for correct torque settings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFAP-S060\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eAprilia RS 660 (2020–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-hopping mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring type\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving\u003c\/td\u003e\n\u003ctd\u003eApproximately 0.7–0.8 kg (reduction in rotating mass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eRoad and track\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168757244170,"sku":"FAP-S060","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FAP-S040_b9b077f7-1f9c-4351-ab14-08eaeb1ea304.png?v=1780813734"},{"product_id":"stm-ktt-2600","title":"STM EVO GP Dry Clutch for Ducati Panigale V2 955 (2020-2024) – KTT-2600","description":"\u003cp\u003eEngineered from the ground up as a performance replacement for the standard wet clutch, the STM EVO GP dry clutch brings race-bred construction and premium Italian engineering directly to your Ducati Panigale V2 955. A forged outer basket with 40 teeth and dedicated cooling fins dissipate heat more effectively than the OEM unit, while patented ball-ramp technology governs the slipper function with a precision that no cable-adjusted system can match.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduced power loss compared to the standard wet clutch, translating directly into sharper, more responsive acceleration out of every corner\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism controls the slipper (anti-hopper) function for precise modulation at high engine speeds, preventing rear-wheel hop under aggressive downshifts\u003c\/li\u003e\n\u003cli\u003eExtra cooling fins on the 40-tooth outer basket manage thermal load during sustained track use, protecting clutch pack integrity over a full race stint\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure-plate judder at the lever, giving the rider a cleaner, more progressive clutch release feel\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through reduction of rotating mass, improving throttle response and overall dynamic performance\u003c\/li\u003e\n\u003cli\u003eControlled rear-wheel slide behaviour in corners, with improved clutch closing-phase management that prevents the front end tucking under hard corner-entry braking\u003c\/li\u003e\n\u003cli\u003eReduces the triggering impulse of a high-side incident, adding a meaningful safety margin during fast, committed riding\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eSTM's EVO GP series represents the top tier of the Italian manufacturer's clutch range. Every component is machined to tight tolerances from high-grade aluminium alloy, with the outer basket hard-anodised for wear resistance and longevity. The ball-ramp geometry is a patented STM design — not an adaptation of a generic slipper mechanism — and the diaphragm spring replaces the conventional coil-spring stack to eliminate the wobble and inconsistency that characterises many aftermarket conversions. The result is a unit that feels as refined as it performs, whether fitted to a dedicated track machine or a road-ridden V2.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eConverting the Panigale V2 955 from a wet to a dry clutch removes the viscous drag inherent in oil-bathed clutch packs, recovering power that would otherwise be lost before it reaches the rear tyre. On track, the slipper function keeps the rear wheel planted under the hardest downshifts, while the controlled slide characteristics give experienced riders a more adjustable, predictable corner-entry tool. On the road, the approximately 0.7–0.8 kg reduction in rotating mass sharpens the engine's rev response noticeably, and the improved lever feel reduces rider fatigue on longer spirited runs.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch kit is a direct replacement for the OEM wet clutch on the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDucati Panigale V2 955 (2020, 2021, 2022, 2023, 2024)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003ePart number KTT-2600. If you are unsure whether this unit is correct for your specific build year or specification, contact the Inter-Pace technical team before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003eModel: EVO GP dry clutch\u003c\/li\u003e\n\u003cli\u003ePart number: KTT-2600\u003c\/li\u003e\n\u003cli\u003eFitment: Ducati Panigale V2 955 (2020–2024)\u003c\/li\u003e\n\u003cli\u003eOuter basket teeth: 40\u003c\/li\u003e\n\u003cli\u003eBasket cooling fins: yes\u003c\/li\u003e\n\u003cli\u003eSlipper mechanism: patented ball-ramp\u003c\/li\u003e\n\u003cli\u003eSpring type: diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving vs OEM wet clutch: approx. 0.7–0.8 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168757309706,"sku":"KTT-2600","price":3053.1,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/KTT-0500_6e344be3-12dc-414c-ac5b-174f16d114b8.png?v=1780813739"},{"product_id":"stm-ktt-2500","title":"STM EVO SBK Dry Clutch for Ducati Panigale V2 955 (2020-2024) – KTT-2500","description":"\u003cp\u003eFor riders who demand total control over every gear change and corner entry, the STM EVO SBK dry clutch conversion for the Ducati Panigale V2 955 is an engineered step-change. Replacing the standard wet clutch with a purpose-built SBK-specification dry unit, it delivers measurably reduced power loss, a significant saving in rotating mass, and a level of clutch feel that makes long track sessions and spirited road riding considerably less fatiguing on the hand and the mind.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduced power loss through dry clutch operation for sharper, more responsive acceleration out of every corner\u003c\/li\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, maintaining a stable, composed drive line under hard braking\u003c\/li\u003e\n\u003cli\u003eSuppresses rear-wheel hop for improved traction and stability in demanding conditions\u003c\/li\u003e\n\u003cli\u003eLowers the trigger impulse of a highside event, adding a meaningful safety margin at speed\u003c\/li\u003e\n\u003cli\u003eEnables controlled rear-wheel slides, giving experienced riders the handling nuance to exploit track conditions\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper\/anti-hopping function with precision at high rpm\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure-plate judder, delivering a smoother, more progressive clutch release that reduces hand fatigue over long stints\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through reduction of rotating mass, directly benefiting acceleration and engine response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngineering \u0026amp; Build Quality\u003c\/h2\u003e\u003cp\u003eSTM's EVO SBK unit is built to the same standard as the components the Italian brand supplies to World Superbike teams. The patented ball-ramp slipper system is the core of its advantage: ramps engage progressively under engine braking to modulate back-torque precisely, preventing the abrupt rear-wheel locking that can unsettle a bike mid-corner. The diaphragm spring replaces the conventional coil-spring stack, removing the tilting motion of the pressure plate that causes the grabby, inconsistent feel many riders notice with standard clutches. The result is a lever action that feels natural and consistent whether you are threading through traffic or threading through a chicane.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eThe shift from wet to dry operation eliminates the viscous drag that a wet clutch generates even when fully disengaged. On the Ducati Panigale V2 955 this translates to a cleaner power delivery from the moment the lever releases, and a more direct connection between throttle input and rear-wheel response. The weight reduction of roughly 0.7–0.8 kg comes almost entirely from rotating components, meaning the engine revs more freely and responds faster to throttle changes — a benefit that is felt immediately and compounds with every gear change throughout a lap. For riders who use a slipper clutch to manage corner entry, the controllable rear-wheel slide characteristic of the dry unit adds a dimension of adjustability that the stock setup simply cannot offer.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM EVO SBK dry clutch with part number KTT-2500 is a direct fitment for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDucati Panigale V2 955 — model years 2020, 2021, 2022, 2023, 2024\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThis conversion replaces the original wet clutch assembly. Professional installation is recommended. Always verify fitment against your specific model year and variant before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003eModel: EVO SBK dry clutch\u003c\/li\u003e\n\u003cli\u003ePart number: KTT-2500\u003c\/li\u003e\n\u003cli\u003eType: Dry clutch conversion kit with slipper\/anti-hopping function\u003c\/li\u003e\n\u003cli\u003eFitment: Ducati Panigale V2 955 (2020–2024)\u003c\/li\u003e\n\u003cli\u003eSlipper mechanism: Patented ball-ramp anti-hopping system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring (eliminates pressure-plate judder)\u003c\/li\u003e\n\u003cli\u003eWeight saving: approx. 0.7–0.8 kg (reduction of rotating mass)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168757375242,"sku":"KTT-2500","price":2790.13,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/KTT-0400_418b8371-d2ca-4531-8a39-3c357163ba89.png?v=1780813740"},{"product_id":"stm-fbm-s020","title":"STM Slipper Clutch for BMW M1000RR K66 (2023-2026) – FBM-S020","description":"\u003cp\u003eIf you want more confidence on every ride — whether commuting hard through corners or pushing lap times on track — the STM slipper clutch for the BMW M1000RR K66 (2023-2026) delivers exactly that. By eliminating the engine-braking instability that causes rear-wheel hop and highsider risk under hard downshifts, this is one of the most practical and rewarding upgrades you can make to the M1000RR.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-run on downshifts, keeping rear-wheel traction consistent and drive stable across everyday and spirited riding conditions\u003c\/li\u003e\n\u003cli\u003eReduces rear-wheel chatter and hop for noticeably better traction, particularly when trail-braking into corners at speed\u003c\/li\u003e\n\u003cli\u003eMinimises the trigger impulse of a highsider, raising the safety margin significantly on both road and track\u003c\/li\u003e\n\u003cli\u003eAllows controlled rear-wheel slides, giving the rider the ability to fine-tune cornering balance rather than fighting the bike\u003c\/li\u003e\n\u003cli\u003eImproves clutch closure feel in bends, preventing unwanted front-end dip caused by abrupt re-engagement\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring smooths lever release feel and eliminates pressure-plate flutter for a cleaner, more progressive action\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg by reducing rotating mass, directly improving chassis responsiveness and agility\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the anti-hopping function with precision, maintaining reliable performance at high engine speeds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEveryday Usability and Long-Term Value\u003c\/h2\u003e\u003cp\u003eThe STM FBM-S020 is not a race-only component hidden behind complex setup procedures. Fitted in place of the OEM clutch, it works transparently every time you close the throttle and downshift — on a Sunday morning blast just as much as a track day. The weight reduction from lowering rotating mass is felt immediately as lighter, more responsive steering and quicker direction changes, benefits that are just as apparent filtering through traffic as they are at circuit speeds.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring design reduces lever effort, which translates to less fatigue on longer rides. STM's patented ball-ramp geometry is engineered to self-adjust the anti-hopping force relative to engine speed, so the clutch behaves predictably across the full rev range without requiring track-side tuning between sessions.\u003c\/p\u003e\u003ch2\u003eEngineering and Build Quality\u003c\/h2\u003e\u003cp\u003eSTM has been manufacturing slipper clutches for MotoGP-derived machinery for decades, and the FBM-S020 reflects that pedigree. The ball-ramp anti-hopping mechanism is a patented STM design that controls slip force with exceptional accuracy, preventing both premature slip under light deceleration and excessive lockup under heavy braking. Every component is manufactured to exacting tolerances so that fitment to the M1000RR K66 is direct and precise, requiring no modification to the surrounding drivetrain.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is a direct fitment for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBMW M1000RR – chassis code K66 – model years 2023, 2024, 2025, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FBM-S020\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: BMW M1000RR K66 (2023-2026)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg (reduction in rotating mass)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168773431562,"sku":"FBM-S020","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FAP-S040_d81d0436-5224-46ac-bb3b-b6d074db24ec.png?v=1780814491"},{"product_id":"stm-fya-s190","title":"STM Slipper Clutch for Yamaha YZF-R7 (2021–2026) – FYA-S190","description":"\u003cp\u003eSTM has built its reputation on motorsport-derived clutch engineering, and the FYA-S190 slipper clutch for the Yamaha YZF-R7 is the definitive expression of that heritage. Designed from the ground up for aggressive street and track use, its patented ball-ramp anti-hopping mechanism and diaphragm spring pressure plate bring genuine race-class clutch feel and protection to one of the most exciting middleweight sportsbikes on sale today.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp technology controls the anti-hopping function precisely at high engine speeds, giving you confidence under hard trail-braking and aggressive downshifts.\u003c\/li\u003e\n\u003cli\u003ePrevents rear-wheel hop and reduces engine over-rev on downshifts, dramatically lowering the risk of a highside and keeping the chassis settled mid-corner.\u003c\/li\u003e\n\u003cli\u003eControlled rear-wheel slide capability — rear-end movement stays managed and predictable rather than sudden, improving corner-entry handling.\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring pressure plate eliminates pressure-plate judder on clutch release, delivering a smooth, progressive feel at the lever that is noticeably more refined than the OEM unit.\u003c\/li\u003e\n\u003cli\u003eSignificant rotating-mass reduction of approximately 0.7–0.8 kg, freeing up engine response and improving overall performance of the YZF-R7.\u003c\/li\u003e\n\u003cli\u003eBetter management of clutch closure in corners prevents the bike from tucking the front under deceleration, adding an important layer of active safety.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM has been supplying slipper clutches to World Superbike and Moto2 teams for decades. The FYA-S190 carries that racing DNA into a bolt-on kit engineered specifically for the YZF-R7 platform. Every component reflects the company's Italian precision manufacturing — close-tolerance machined basket and hub geometry, carefully selected friction and steel plate compounds, and an anodised finish that holds up to repeated high-temperature cycling without degrading. This is not a universal kit adapted to fit; it is a model-specific design matched to the YZF-R7's engine character, gearbox ratios and chassis balance.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eOn track the benefits are immediate. Braking deep into corners with the throttle closed, the ball-ramp mechanism progressively disengages drive, preventing the rear tyre from locking and launching the rider over the bars. On the road the same technology translates into a more forgiving, fatigue-free clutch action — useful during technical mountain-road riding where rapid downshifts are frequent. The weight saving from reduced rotating mass sharpens throttle response and improves the revving character of the CP2 parallel-twin engine without any engine modifications.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FYA-S190 is a direct, model-specific fitment for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eYamaha YZF-R7 — model years 2021, 2022, 2023, 2024, 2025, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNo chassis modifications are required. Always consult the supplied installation instructions and, where available, seek fitment by a qualified motorcycle technician.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FYA-S190\u003c\/li\u003e\n\u003cli\u003eType: Slipper \/ anti-hopping clutch\u003c\/li\u003e\n\u003cli\u003eFitment: Yamaha YZF-R7 (2021–2026)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003ePressure plate: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eRotating mass reduction: approx. 0.7–0.8 kg\u003c\/li\u003e\n\u003cli\u003eIntended use: Road and track\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168773595402,"sku":"FYA-S190","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_6e87e67f-ada5-40ac-be47-1d6675a50ff5.png?v=1780814493"},{"product_id":"stm-ktt-3600","title":"STM EVO SBK Dry Clutch – Aprilia RSV4 \/ RF \/ RR \/ 1100 Factory (2015–2026) KTT-3600","description":"\u003cp\u003eFor Aprilia RSV4 riders who want meaningful performance gains without chasing exotic track-only hardware, the STM EVO SBK dry clutch KTT-3600 is one of the most practical upgrades you can make. It replaces the standard wet clutch with a proven dry-clutch system that reduces power loss, sharpens engine response and gives you a noticeably better feel every time you roll onto the throttle or brake into a corner — on the road or on circuit.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduced power loss compared to the OEM wet clutch, putting more of the engine's output to the rear wheel on every ride.\u003c\/li\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping the drivetrain stable during aggressive trail-braking and fast gear changes.\u003c\/li\u003e\n\u003cli\u003eMinimises rear-wheel hop under hard deceleration and allows controlled sliding — a clear advantage both on track and in spirited road use.\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg through a reduction in rotating mass, improving throttle response and reducing inertia.\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the anti-hopping function for precise, progressive clutch control at high engine speeds.\u003c\/li\u003e\n\u003cli\u003eImproved corner-entry behaviour during clutch engagement: the system actively resists front-end dive, giving a more planted, confident feel.\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design prevents pressure-plate flutter, delivering a smooth, consistent lever release with no chatter at the handlebar.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngineering Detail\u003c\/h2\u003e\u003cp\u003eThe EVO SBK is STM's road-and-track dry clutch, developed directly from their Superbike racing programme. At the heart of the system are STM's patented ball ramps, which self-regulate back-torque limiting without requiring manual adjustment. The diaphragm spring replaces the conventional coil-spring stack, eliminating the mechanical instability that causes pressure-plate judder — something riders notice immediately as a cleaner, more linear lever feel from engagement to full release.\u003c\/p\u003e\u003cp\u003eThe reduction in rotating mass is achieved by moving away from the oil-bath architecture of the original wet clutch. Less spinning mass means the engine revs more freely, responds faster to throttle inputs and is easier to control at the limit. For riders who regularly use their RSV4 on both public roads and track days, this translates into a more usable, communicative clutch in every riding scenario, not just at maximum attack.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM EVO SBK dry clutch KTT-3600 is a direct-replacement conversion kit designed specifically for the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAprilia RSV4 (2015–2026)\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 RF (2015–2026)\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 RR (2015–2026)\u003c\/li\u003e\n\u003cli\u003eAprilia RSV4 1100 Factory (2015–2026)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis kit replaces the complete OEM wet-clutch assembly. Professional installation is recommended. Always verify compatibility with your specific model year before ordering.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003eModel: EVO SBK dry clutch\u003c\/li\u003e\n\u003cli\u003ePart number: KTT-3600\u003c\/li\u003e\n\u003cli\u003eClutch type: Dry clutch conversion\u003c\/li\u003e\n\u003cli\u003eWeight saving: approx. 0.7–0.8 kg (reduction in rotating mass)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping: Yes — patented ball-ramp mechanism\u003c\/li\u003e\n\u003cli\u003ePressure plate: Diaphragm spring design\u003c\/li\u003e\n\u003cli\u003eFitment: Aprilia RSV4 \/ RF \/ RR \/ 1100 Factory (2015–2026)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168887169290,"sku":"KTT-3600","price":3716.73,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/KTT-3600.png?v=1780818196"},{"product_id":"stm-ktt-2700","title":"STM Dry Clutch Kit for BMW M1000RR K66 (2023-2026) KTT-2700","description":"\u003cp\u003eConverting the standard wet clutch on your BMW M1000RR K66 to a dry unit is one of the most rewarding upgrades you can make — not just for track days, but for every spirited road ride where feel and control matter most. The STM dry clutch kit KTT-2700 delivers measurable reductions in drivetrain power loss, a significant saving in rotating mass, and a clutch lever action that is genuinely more progressive and confidence-inspiring in daily sport use.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplaces the stock wet clutch with a performance dry clutch, reducing power loss through the drivetrain\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper\/anti-hopper function for precise control at high engine speeds\u003c\/li\u003e\n\u003cli\u003ePrevents rear-wheel hop under hard downshifts and allows controlled sliding without unpredictable tank-slappers\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg by reducing rotating mass — felt immediately in throttle response and direction changes\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring eliminates pressure-plate judder for a smooth, linear clutch-release feel every time\u003c\/li\u003e\n\u003cli\u003eImproved corner-entry stability: the closing phase of the clutch is better managed, reducing front-end dive under engine braking\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEveryday Usability\u003c\/h2\u003e\u003cp\u003eUnlike some dry clutch conversions aimed purely at circuit use, the STM KTT-2700 has been engineered to work just as well on a morning canyon run or a Sunday sport ride as it does in a pit-lane setting. The ball-ramp anti-hopper calibration keeps downshifts smooth and predictable in traffic as much as under braking for a hairpin, and the diaphragm spring ensures the lever pull remains consistent whether the clutch is cold or fully up to temperature. Riders who clock regular road miles on their M1000RR will notice the improvement in corner confidence most of all.\u003c\/p\u003e\u003ch2\u003eEngineering \u0026amp; Build Quality\u003c\/h2\u003e\u003cp\u003eSTM has built its reputation on precision-machined clutch components used across World Superbike and other top-level competition, and the KTT-2700 carries the same manufacturing standards into a bolt-on kit format. The patented ball-ramp geometry is the centrepiece of the design: by controlling exactly how the slipper function engages and disengages, it eliminates the abrupt rear-wheel lockup that a standard or poorly calibrated slipper clutch can produce. The diaphragm spring acts on the pressure plate to prevent wobble during engagement, giving the lever a feedback quality that feels more like a race-prepared machine than a production motorcycle.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThis kit is a direct-fit replacement for the OEM wet clutch on the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBMW M1000RR — chassis code K66 — model years 2023, 2024, 2025, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNo chassis modifications are required. Always verify your chassis code before ordering, and refer to the STM installation documentation included with the kit for torque specifications and assembly sequence.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: KTT-2700\u003c\/li\u003e\n\u003cli\u003eType: Dry clutch conversion kit\u003c\/li\u003e\n\u003cli\u003eFitment: BMW M1000RR K66 (2023–2026)\u003c\/li\u003e\n\u003cli\u003eAnti-hopper system: Patented ball-ramp mechanism\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg (reduction in rotating mass vs. OEM wet clutch)\u003c\/li\u003e\n\u003cli\u003ePressure plate control: Diaphragm spring\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168887333130,"sku":"KTT-2700","price":3514.84,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/KTT-2700.png?v=1780818198"},{"product_id":"stm-kupplung-ducati-panigale-v2","title":"STM Slipper Clutch for Ducati Panigale V2 955 (2020-2024) - FDU-S070","description":"\u003cp\u003eSTM's racing pedigree is built into every component of the FDU-S070 slipper clutch — a purpose-engineered assembly designed specifically for the Ducati Panigale V2 955. Drawing on decades of Italian motorsport heritage, STM has refined the basket, pressure plate and ball-ramp mechanism into a cohesive unit that transforms how the V2 behaves on corner entry, delivering the kind of rear-wheel composure that separates a quick lap from a great one.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on aggressive downshifts, keeping the rear wheel planted and the chassis settled through corner entry\u003c\/li\u003e\n\u003cli\u003eSignificantly reduces rear wheel hop under braking, improving traction consistency lap after lap\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp technology governs the anti-hopping function with precision, offering predictable and progressive engagement at high engine speeds\u003c\/li\u003e\n\u003cli\u003eControlled rear wheel slide behaviour for confident, sport-focused handling without unexpected snap\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring eliminates pressure plate flutter, giving a cleaner, more tactile feel as the clutch lever is released\u003c\/li\u003e\n\u003cli\u003eReduces the trigger impulse of a potential highside, an essential safety margin when carrying maximum corner-entry speed\u003c\/li\u003e\n\u003cli\u003eRotating mass reduction of approximately 0.7–0.8 kg compared to the stock unit, sharpening throttle response and overall V2 performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDesign, Finish and Heritage\u003c\/h2\u003e\u003cp\u003eSTM has been supplying clutch systems to World Superbike and MotoGP teams long enough to know that aesthetics and function are not mutually exclusive. The FDU-S070 carries the clean, machined appearance that has become an STM hallmark — precise tolerances, purposeful geometry, and a finish that looks as considered as the engineering beneath it. Fitting this unit is not simply a performance upgrade; it is a statement about how the Panigale V2 should be built.\u003c\/p\u003e\u003cp\u003eBetter control of clutch engagement in corners prevents the front end from dipping unexpectedly on partial throttle, a characteristic that riders pushing into new lap-time territory will feel immediately. The improved lever feel — smooth, progressive, free of the snatching that plagues standard wet-plate setups under track heat — means confidence builds faster and fatigue arrives later.\u003c\/p\u003e\u003ch2\u003ePerformance and Track Use\u003c\/h2\u003e\u003cp\u003eOn track, the FDU-S070 earns its place at every circuit that demands late, hard braking. The ball-ramp mechanism allows a measured amount of clutch slip as engine speed drops sharply on the overrun, decoupling the drivetrain jolt before it can upset the chassis. The result is a rear tyre that stays in contact with the tarmac rather than skipping across it, and a front tyre that can do its braking work undisturbed. Combined with the rotational mass saving, the V2 feels lighter on turn-in and more responsive to throttle inputs as the bike stands up on corner exit.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FDU-S070 is a direct-fit slipper clutch engineered exclusively for the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDucati Panigale V2 955 — model years 2020, 2021, 2022, 2023, 2024\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eFDU-S070\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlipper clutch (anti-hopping clutch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eDucati Panigale V2 955 (2020–2024)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnti-hopping mechanism\u003c\/td\u003e\n\u003ctd\u003ePatented ball-ramp system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure plate design\u003c\/td\u003e\n\u003ctd\u003eDiaphragm spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight saving vs. stock\u003c\/td\u003e\n\u003ctd\u003eapprox. 0.7–0.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168888152330,"sku":"FDU-S070","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FAP-S040_0c0c1f45-44af-4e16-96c8-45b184f678b6.png?v=1780818201"},{"product_id":"stm-fkw-s130","title":"STM Slipper Clutch Kawasaki ZX-6R \/ 636 \/ ZX-6RR (2019-2026) FKW-S130","description":"\u003cp\u003eFor riders who push the Kawasaki ZX-6R hard into late-braking zones, the risk of a rear-wheel hop or highsider on a missed downshift is never far away. The STM slipper clutch for the ZX-6R \/ 636 \/ ZX-6RR (2019-2026), part number FKW-S130, is engineered to eliminate exactly that risk — bringing certified race-grade safety and measurable performance gains to both track days and spirited road riding.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping the rear wheel planted and the chassis stable under hard braking\u003c\/li\u003e\n\u003cli\u003eReduces highsider trigger impulse significantly, lowering the risk of a violent crash at high speed — the primary safety case for fitting a slipper clutch\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the anti-hopping function with precision, optimising drive control at high rpm\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring eliminates pressure-plate wobble, delivering a cleaner, more progressive clutch-lever release feel\u003c\/li\u003e\n\u003cli\u003eControlled rear-wheel slide capability for improved corner-entry handling and confidence on track\u003c\/li\u003e\n\u003cli\u003eBetter clutch-closing management through bends prevents the front end from tucking under power pick-up\u003c\/li\u003e\n\u003cli\u003eApproximately 0.7–0.8 kg weight saving through reduced rotating mass, sharpening throttle response and overall performance of the ZX-6R \/ 636 \/ ZX-6RR\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSafety and Engineering Rationale\u003c\/h2\u003e\u003cp\u003eA conventional clutch transmits full engine braking torque directly to the rear tyre during aggressive downshifts. When tyre grip cannot match that torque spike, the rear wheel locks and rebounds — the classic highsider mechanism. STM's ball-ramp slipper system interrupts this cycle by allowing the clutch to partially disengage whenever back-torque exceeds a calibrated threshold. The result is a controlled, graduated transfer of engine braking rather than an abrupt shock load, keeping the chassis settled and the rider in command.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring design is equally important: it removes the oscillation that standard pressure plates develop at high rpm, giving the lever a consistent, feedback-rich action that makes smooth, fast downshifts more repeatable lap after lap.\u003c\/p\u003e\u003ch2\u003ePerformance Gains\u003c\/h2\u003e\u003cp\u003eBeyond pure safety, the STM FKW-S130 delivers tangible lap-time benefits for the ZX-6R platform. Shedding approximately 0.7–0.8 kg from the rotating assembly reduces the gyroscopic inertia of the drivetrain, which translates into lighter, more responsive steering and quicker rpm build. The ability to trail-brake deeper and downshift later — with confidence — allows riders to carry greater corner-entry speed without gambling on rear grip.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis slipper clutch is a direct-fit replacement for the following Kawasaki models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eKawasaki ZX-6R — model years 2019 to 2026\u003c\/li\u003e\n\u003cli\u003eKawasaki ZX-6 636 — model years 2019 to 2026\u003c\/li\u003e\n\u003cli\u003eKawasaki ZX-6RR — model years 2019 to 2026\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FKW-S130\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg vs. OEM assembly\u003c\/li\u003e\n\u003cli\u003eFitment: Kawasaki ZX-6R \/ ZX-6 636 \/ ZX-6RR (2019–2026)\u003c\/li\u003e\n\u003cli\u003eIntended use: Road and track\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53168888578314,"sku":"FKW-S130","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_49b03d4f-c4ee-47b6-b78b-2c5026b61829.png?v=1780818203"},{"product_id":"stm-trockenkupplung-kit-bmw-s1000rr-k67-ktt-2700","title":"STM Dry Clutch Kit BMW S1000RR K67 (2019-2026) KTT-2700","description":"\u003cp\u003eEngineered to replace the factory wet clutch on the BMW S1000RR K67, the STM Dry Clutch Kit KTT-2700 is a precision-built assembly that draws on STM's racing heritage to deliver measurably better power transfer, sharper engine response and a significant reduction in rotating mass — exactly what demanding track riders and serious sport riders require from a drivetrain upgrade of this calibre.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduced power loss through elimination of the wet clutch's oil-drag losses, putting more of the S1000RR's output directly to the rear wheel\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the anti-hopper function, providing precise back-torque limiting at high revs without the abruptness of a conventional slipper clutch\u003c\/li\u003e\n\u003cli\u003eWeight saving of approximately 0.7–0.8 kg by reducing rotating mass, with a tangible improvement in throttle response and rev-matching feel\u003c\/li\u003e\n\u003cli\u003ePrevents rear-wheel hop under aggressive downshifts, enabling controlled sliding with confidence rather than unwanted chatter\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design eliminates pressure-plate wobble, giving the clutch lever a smooth, progressive release with no dead spots\u003c\/li\u003e\n\u003cli\u003eImproved cornering stability during the clutch engagement phase, actively resisting front-end tuck caused by engine braking in mid-corner\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eSTM has built its reputation on manufacturing clutch components to tolerance levels that satisfy WorldSBK and club-racing teams alike. The KTT-2700 kit reflects that pedigree: every component is machined from high-grade materials selected for their resistance to heat cycling and mechanical fatigue. The patented ball-ramp anti-hopping system is a proprietary STM design — not an aftermarket approximation — and the diaphragm spring is calibrated specifically for the S1000RR's engine character, ensuring consistent lever feel whether you are on a warm-up lap or pushing hard in the closing stages of a race.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eSwapping the original wet clutch for the STM dry unit transforms how the S1000RR communicates through the lever. Engine over-rev on aggressive downshifts is curtailed cleanly, rear-wheel hop is eliminated and the reduced rotating inertia makes the motor spin more freely between gear changes. On track, where clutch heat build-up and fade can compromise lap times, the dry clutch's thermal characteristics offer a clear advantage. In sport road use the same qualities translate into a more engaging, connected ride.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis kit is designed and manufactured specifically for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBMW S1000RR K67 — model years 2019 to 2026\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart Number: KTT-2700\u003c\/li\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003eType: Dry clutch conversion kit\u003c\/li\u003e\n\u003cli\u003eFitment: BMW S1000RR K67 (2019–2026)\u003c\/li\u003e\n\u003cli\u003eAnti-hopper system: Patented ball-ramp mechanism\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving: approximately 0.7–0.8 kg (rotating mass reduction)\u003c\/li\u003e\n\u003cli\u003eReplaces: OEM wet clutch assembly\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53169032593674,"sku":"SY-2700-A0708E-01","price":3514.84,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/KTT-2700_cc24dded-d7af-47c6-bb35-30a19c91f60d.png?v=1780819759"},{"product_id":"stm-anti-hopping-kupplung-cfmoto-cf-450-sr-24-26-fcf-s010","title":"STM Slipper Clutch for CFMoto 450 SR (2024-2026) – FCF-S010","description":"\u003cp\u003eWhether you're commuting hard through traffic or pushing the CFMoto 450 SR on a weekend track day, the STM slipper clutch FCF-S010 transforms the way the bike responds under aggressive downshifts — delivering smoother, more predictable behaviour that benefits everyday riding just as much as circuit work.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEliminates unwanted engine over-rev on downshifts, keeping throttle response linear and behaviour predictable at all speeds\u003c\/li\u003e\n\u003cli\u003eReduces rear wheel hop under trail-braking, improving traction and overall stability in corners\u003c\/li\u003e\n\u003cli\u003eLowers the risk of a highside by decoupling sudden rear-wheel lock impulses from the drivetrain\u003c\/li\u003e\n\u003cli\u003ePermits controlled rear wheel slides, giving confident, sport-oriented riders the latitude to use the rear end actively\u003c\/li\u003e\n\u003cli\u003eImproves control over clutch engagement during corner entry, preventing unwanted chassis squat mid-bend\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring design ensures smooth, consistent clutch release and eliminates pressure-plate wobble\u003c\/li\u003e\n\u003cli\u003eSaves approximately 0.7–0.8 kg of rotating mass compared to the stock assembly, benefiting acceleration and engine response\u003c\/li\u003e\n\u003cli\u003ePatented ball-ramp mechanism provides precise, repeatable control of the slipper function even at high engine speeds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReal-World Usability\u003c\/h2\u003e\u003cp\u003eThe FCF-S010 is not purely a track tool. Because the anti-hopping function smooths out the drivetrain jolt that occurs every time you change down in traffic or on B-roads, daily riding becomes noticeably less fatiguing. The bike hooks up cleanly on corner exit rather than hunting for grip, and the lighter rotating assembly sharpens throttle response from lower revs — a combination that makes the CFMoto 450 SR feel genuinely more refined without requiring any changes to riding style.\u003c\/p\u003e\u003ch2\u003eTechnology \u0026amp; Construction\u003c\/h2\u003e\u003cp\u003eSTM's slipper clutch design centres on a patented ball-ramp system that automatically modulates clamping force during engine braking. As the rear wheel tries to overrun the engine, the ramps partially disengage the clutch plates, absorbing the excess energy. Once the engine and wheel speeds re-balance, full clamping force is restored instantly. The diaphragm spring replaces the conventional coil-spring stack, providing a more progressive lever feel and eliminating the inconsistent release behaviour associated with worn coil springs. The reduction in rotating mass — 0.7–0.8 kg — comes from STM's lightweight billet construction, which also contributes to the component's durability.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM FCF-S010 is a direct-fit slipper clutch designed specifically for the CFMoto 450 SR covering model years 2024, 2025, and 2026. No modification to the engine cases or clutch basket is required for installation.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FCF-S010\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: CFMoto 450 SR (2024–2026)\u003c\/li\u003e\n\u003cli\u003eAnti-hopping mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eRelease mechanism: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eRotating mass saving: approx. 0.7–0.8 kg vs. standard clutch\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53169032691978,"sku":"SY-STMANTIH-FF4714-01","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_60b57ab0-e33c-4cd5-ac12-e1b51dc68908.png?v=1780819764"},{"product_id":"stm-anti-hopping-kupplung-honda-cbr-600-rr-22-25-fhn-s190","title":"STM Slipper Clutch Honda CBR 600 RR (2022-2025) FHN-S190","description":"\u003cp\u003eEngineered from the ground up for precision and durability, the STM slipper clutch for the Honda CBR 600 RR (2022-2025) is a race-proven upgrade that transforms how this supersport machine behaves under hard braking and aggressive downshifts. Where the stock clutch struggles at the limit, STM's patented ball-ramp mechanism and diaphragm spring technology deliver the kind of composed, predictable feel that separates controlled riding from chaos.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePatented ball-ramp mechanism governs the slipper function with exceptional precision, optimising clutch engagement at high engine speeds for maximum riding control\u003c\/li\u003e\n\u003cli\u003eDiaphragm spring eliminates pressure plate flutter during clutch release, giving the lever a smoother, more consistent feel lap after lap\u003c\/li\u003e\n\u003cli\u003ePrevents engine over-rev on downshifts, keeping the drivetrain stable and reducing the risk of a highsider under trail braking\u003c\/li\u003e\n\u003cli\u003eMinimises rear wheel hop during aggressive deceleration, improving traction and allowing controlled rear wheel slides for track-focused riding\u003c\/li\u003e\n\u003cli\u003eImproved clutch closure phase in corners prevents the front end from tucking, adding a meaningful layer of safety in fast direction changes\u003c\/li\u003e\n\u003cli\u003eSignificant reduction in rotating mass — approximately 0.7 to 0.8 kg lighter than the OEM assembly — freeing up power and sharpening throttle response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Premium Materials\u003c\/h2\u003e\u003cp\u003eSTM is one of the most respected names in aftermarket clutch technology, and the FHN-S190 reflects that reputation fully. Every component in this assembly is manufactured to the tight tolerances demanded by professional racing, using high-grade alloys and surface treatments chosen for longevity under sustained heat and stress. The ball-ramp geometry is a patented STM design that has been refined over years of development at the highest levels of motorcycle competition. The result is a clutch that not only performs at the track but holds up season after season without the degradation you would expect from lesser alternatives.\u003c\/p\u003e\u003cp\u003eThe diaphragm spring is a particularly notable detail. Rather than relying on conventional coil springs, this layout prevents the pressure plate from wobbling during disengagement — a subtle but tangible improvement in lever feel that experienced riders will notice immediately. Combined with the precision-machined basket and hub, every shift feels deliberate and mechanical in the very best sense.\u003c\/p\u003e\u003ch2\u003ePerformance on Track and Road\u003c\/h2\u003e\u003cp\u003eFor Honda CBR 600 RR riders who push their machines hard, the factory clutch presents well-known limitations under sustained track use: rear wheel chatter on the brakes, inconsistent lever feedback mid-corner, and the ever-present risk of a highsider when engine braking overwhelms traction. The STM FHN-S190 addresses each of these issues systematically. The slipper function bleeds off excess engine braking torque smoothly, keeping the rear tyre loaded and compliant rather than skipping across the tarmac. The weight saving of approximately 0.7 to 0.8 kg from reduced rotating mass sharpens the CBR's already eager character, translating to crisper acceleration out of slow corners and a more responsive feel through the rev range.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis clutch is specifically designed and validated for the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHonda CBR 600 RR — model years 2022, 2023, 2024, 2025\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FHN-S190\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: Honda CBR 600 RR (2022-2025)\u003c\/li\u003e\n\u003cli\u003eSlipper mechanism: Patented ball-ramp system\u003c\/li\u003e\n\u003cli\u003eSpring type: Diaphragm spring\u003c\/li\u003e\n\u003cli\u003eWeight saving vs. OEM: approx. 0.7-0.8 kg (reduction in rotating mass)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53169032724746,"sku":"SY-STMANTIH-F81484-01","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_7c3697c1-9f94-44e8-91ce-c26245781625.png?v=1780819765"},{"product_id":"stm-anti-hopping-kupplung-sbk-racing-yamaha-yzf-r1-m-rn65-20-26-fya-s171","title":"STM SBK Racing Slipper Clutch Yamaha YZF-R1\/R1M RN65 (2020-2026) FYA-S171","description":"\u003cp\u003eFor riders who demand genuine race-derived clutch technology on the road as much as on track, the STM SBK Racing Light Slipper Clutch FYA-S171 is purpose-built for the Yamaha YZF-R1 and R1M RN65 (2020–2026). Its lightweight-optimised construction delivers noticeably more direct response, smoother gear changes and real-world stability that you feel on the very first hard stop into a corner.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLightweight wet slipper clutch design reduces rotational mass for quicker, more responsive engagement\u003c\/li\u003e\n\u003cli\u003eControlled back-torque management minimises rear wheel hop under aggressive downshifting\u003c\/li\u003e\n\u003cli\u003eMore stable corner entry — improved confidence when late-braking and leaning hard\u003c\/li\u003e\n\u003cli\u003eSTM Racing technology maintains consistent performance under sustained thermal load\u003c\/li\u003e\n\u003cli\u003eEngineered specifically around the CP4 inline-four of the RN65 generation\u003c\/li\u003e\n\u003cli\u003eEqually suited to spirited road riding, trackdays and club-level competition\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEveryday Usability Meets Racing Technology\u003c\/h2\u003e\u003cp\u003eThe FYA-S171 sits in STM's SBK Racing Light range — a line designed to bring Superbike Championship-derived slipper clutch technology within reach of serious road and trackday riders without demanding a full race-team budget. The wet clutch architecture means it runs reliably in the standard oil bath of your R1, so there is no need for additional hardware or exotic lubricants. Installation follows OEM mounting points, keeping the upgrade accessible even outside a professional workshop.\u003c\/p\u003e\u003cp\u003eWhere many slipper clutches focus purely on outright track performance, the SBK Racing Light series is calibrated to remain predictable and manageable in mixed-use conditions. The result is a clutch that earns its keep on a Sunday morning canyon run just as readily as it does on a circuit pit-lane exit.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eThe reduced rotational inertia of the lightweight basket and plate assembly translates directly into a more agile-feeling machine — the R1 responds crisper to throttle inputs and feels noticeably lighter to flick between direction changes. Under hard braking and rapid downshifts the slipper function progressively releases excess back-torque, smoothing the transition and keeping the rear tyre planted rather than skipping. The outcome is a measurable gain in braking stability, corner-entry confidence and the ability to get on the throttle earlier and with greater precision.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYamaha YZF-R1 RN65 (2020–2026)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1M RN65 (2020–2026)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FYA-S171\u003c\/li\u003e\n\u003cli\u003eSeries: SBK Racing Light\u003c\/li\u003e\n\u003cli\u003eType: Wet slipper clutch (anti-hopping clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: Yamaha YZF-R1 \/ R1M RN65, 2020–2026\u003c\/li\u003e\n\u003cli\u003eEngine compatibility: CP4 inline-four\u003c\/li\u003e\n\u003cli\u003eMounting: OEM mounting points, direct replacement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53169032888586,"sku":"SY-STMANTIH-65C156-01","price":1292.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_bac7c3b0-1a7f-4c94-bb6d-778fd36d5353.png?v=1780819777"},{"product_id":"stm-anti-hopping-kupplung-sbk-racing-yamaha-yzf-r1-m-rn65-20-26-fya-r170","title":"STM Anti-Hopping Slipper Clutch SBK Racing Full – Yamaha YZF-R1\/M RN65 (2020-2026) FYA-R170","description":"\u003cp\u003eLong sessions at the track or demanding back-road days demand a clutch that never lets fatigue or mechanical stress become the enemy of control. The STM SBK Racing Full Street Wet Slipper Clutch FYA-R170 is STM's flagship anti-hopping unit for the Yamaha YZF-R1 and R1M (RN65, 2020–2026), combining a complete basket assembly with a full disc set to deliver all-day consistency, effortless lever action, and the kind of predictable, planted feel that lets you focus entirely on the ride.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduced rear-wheel hop under hard engine braking for composed, confident corner entries\u003c\/li\u003e\n\u003cli\u003eSmoother, more precise gear changes even at peak revs — lever pull feels lighter lap after lap\u003c\/li\u003e\n\u003cli\u003eOutstanding thermal stability under sustained high-load conditions, resisting fade during extended track sessions\u003c\/li\u003e\n\u003cli\u003eOptimised power transfer perfectly matched to the R1's aggressive power delivery and electronics suite\u003c\/li\u003e\n\u003cli\u003eUltra-robust construction engineered for long service life in both race and demanding road use\u003c\/li\u003e\n\u003cli\u003eComplete kit: basket assembly and disc set included — a true drop-in racing upgrade\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuilt to Race, Refined for the Road\u003c\/h2\u003e\u003cp\u003eSTM has supplied slipper clutch technology to professional racing programmes for years, and the SBK Racing Full line represents the direct transfer of that knowledge into a road-legal package. The FYA-R170 is the top-tier item in the STM catalogue for the R1 platform — chosen when standard or entry-level slipper units simply are not enough. Whether you are chasing lap times on a track day, competing in club racing, or pressing hard on a mountain pass, the engagement feel remains consistent and the lever effort stays low, making throttle-off transitions far less tiring than with the OEM clutch.\u003c\/p\u003e\u003ch3\u003eAll-Day Comfort and Rider Confidence\u003c\/h3\u003e\u003cp\u003eOne of the most overlooked benefits of a quality slipper clutch is how much it reduces physical and mental fatigue. By removing the jarring, destabilising effect of rear-wheel hop during downshifts, the FYA-R170 lets you brake later and with greater confidence, knowing the chassis will remain settled. That predictability translates directly into a more comfortable, composed ride across every session — whether it is your first lap or your fiftieth.\u003c\/p\u003e\u003ch2\u003eImportant Notice — Mandatory Requirement from STM\u003c\/h2\u003e\u003cp\u003eAs stated in the official STM parts catalogue: the original clutch basket must be sent to STM prior to fitting. This is required so that STM can correctly transfer the primary drive gear to the new assembly. Please ensure you factor this into your installation planning before ordering.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYamaha YZF-R1 RN65 (2020–2026)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1M RN65 (2020–2026)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eFYA-R170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eAnti-hopping slipper clutch — SBK Racing Full\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003ctd\u003eStreet Wet (road and track legal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Contents\u003c\/th\u003e\n\u003ctd\u003eComplete basket assembly with disc set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eYamaha YZF-R1 \/ R1M RN65 (2020–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation Note\u003c\/th\u003e\n\u003ctd\u003eOriginal basket must be returned to STM for primary gear transfer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53169032921354,"sku":"SY-STMANTIH-CF1867-01","price":2799.45,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_53da8beb-6290-4359-ba87-37d23c882656.png?v=1780819776"},{"product_id":"stm-anti-hopping-kupplung-yamaha-yzf-r9-25-26-fya-s210","title":"STM Slipper Clutch Yamaha YZF-R9 (2025-2026) FYA-S210 Street Wet Anti-Hopping","description":"\u003cp\u003ePrecision-engineered from the ground up to match the character of Yamaha's CP3-powered R9, the STM Street Wet Slipper Clutch FYA-S210 is built to the same exacting standards you would expect from a marque that supplies top-tier race teams. Every component reflects STM's commitment to materials quality and long-term durability, giving the YZF-R9 a clutch that is as refined in daily riding as it is decisive on a trackday.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngineered specifically for the Yamaha YZF-R9 CP3 engine — optimised engagement characteristics matched to the motor's power delivery\u003c\/li\u003e\n\u003cli\u003eSTM's proven anti-hopping mechanism substantially reduces rear-wheel hop under hard, late braking and aggressive downshifts\u003c\/li\u003e\n\u003cli\u003eSmooth, controlled gear changes at high revs — reduced engine braking response for a more composed rear end mid-corner\u003c\/li\u003e\n\u003cli\u003ePremium STM construction throughout: high-grade materials selected for consistent performance and exceptional service life\u003c\/li\u003e\n\u003cli\u003eEqually at home on road and circuit — street-wet specification means reliable feel and modulation in all conditions\u003c\/li\u003e\n\u003cli\u003eDirect OEM replacement fitment — no custom fabrication required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuilt to Last, Built to Perform\u003c\/h2\u003e\u003cp\u003eSTM's reputation rests on the quality of the parts it puts into production, not merely the concept. The FYA-S210 is machined and assembled to tight tolerances, ensuring the slipper mechanism operates predictably lap after lap and season after season. The use of performance-grade materials throughout — rather than cost-optimised alternatives — means wear characteristics remain consistent long after budget alternatives begin to fade. This is a clutch you buy once.\u003c\/p\u003e\u003ch3\u003eOn the Road and on Track\u003c\/h3\u003e\u003cp\u003eAggressive throttle-off braking into a tight corner is where lesser clutches betray their limits. The STM slipper mechanism intervenes progressively, decoupling enough drivetrain load to stabilise the chassis without sacrificing the connected feel that experienced riders depend on. The result is noticeably tidier corner entries, more confidence under trail braking, and a rear end that stays planted through lean angle changes. Whether you are threading through traffic or chasing lap times, the improvement in composure is immediate.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eYamaha YZF-R9 — model years 2025 and 2026\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSTM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eFYA-S210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eStreet Wet Slipper Clutch (anti-hopping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eYamaha YZF-R9 (2025–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Compatibility\u003c\/td\u003e\n\u003ctd\u003eCP3 inline-three\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended Use\u003c\/td\u003e\n\u003ctd\u003eRoad and track\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003ctd\u003eYes — direct fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53169033019658,"sku":"SY-STMANTIH-755B04-01","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/FDU-S050_b9a146df-9910-44a4-9f79-ee4dd9faec65.png?v=1780819781"},{"product_id":"stm-anti-hopping-kupplung-qj-motor-skr-800-rr-24-26-fqj-s800","title":"STM Slipper Clutch for QJ Motor SKR 800 RR (2024–2026) – FQJ-S800","description":"\u003cp\u003eEngineered from the ground up for the QJ Motor SKR 800 RR, the STM FQJ-S800 slipper clutch is a precision-machined wet clutch assembly built to the exacting standards that have made STM the benchmark for performance clutch technology in European motorsport. Where the standard clutch leaves room for improvement under hard deceleration, the FQJ-S800 steps in with genuine anti-hopping technology, eliminating rear-wheel chatter and transforming the SKR 800 RR's behaviour in demanding riding conditions.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOptimised anti-hopping mechanism dramatically reduces rear-wheel hop under aggressive downshifts and late braking\u003c\/li\u003e\n\u003cli\u003eWet clutch design delivers superior thermal resistance, maintaining consistent performance across extended, demanding riding sessions\u003c\/li\u003e\n\u003cli\u003eSmoother, more progressive gear changes — particularly noticeable when shifting down quickly into tight corners\u003c\/li\u003e\n\u003cli\u003eImproved cornering stability and confidence at high lean angles, where precise drivetrain management matters most\u003c\/li\u003e\n\u003cli\u003eDirect-fit plug-and-play installation engineered specifically for the SKR 800 RR — no modification required\u003c\/li\u003e\n\u003cli\u003ePremium STM construction: close-tolerance components manufactured to racing-grade quality standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Premium Materials\u003c\/h2\u003e\u003cp\u003eSTM has built its reputation on producing clutch components that go straight from the racetrack to the road without compromise. The FQJ-S800 reflects this heritage in every detail: the basket, hub, and pressure plate are machined from high-grade materials selected for durability and dimensional stability under repeated thermal cycling. The wet clutch architecture keeps operating temperatures in check far more effectively than a dry system, meaning the clutch plate stack maintains its friction characteristics whether you're on a spirited mountain road or pushing hard at a track day. The result is a clutch that feels consistent, precise, and completely confidence-inspiring lap after lap or mile after mile.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eThe SKR 800 RR is a genuinely capable middleweight, and the FQJ-S800 allows the rider to exploit that capability more fully. During aggressive downshifts the anti-hopping ramp geometry allows the clutch to slip momentarily, decoupling the engine from the rear wheel just enough to prevent the destructive locking forces that cause chassis instability. The rider experiences this as a composed, settled rear end rather than a snatching, unsettled one — freeing them to brake deeper, turn in later, and carry more corner speed. For daily riders who want cleaner, less jarring downshifts, the benefit is equally tangible in urban and touring conditions.\u003c\/p\u003e\u003ch2\u003eWho This Upgrade Is For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRiders who push the SKR 800 RR hard on road or track and want maximum rear-end stability\u003c\/li\u003e\n\u003cli\u003eThose who demand precise, predictable drivetrain behaviour when shifting down quickly\u003c\/li\u003e\n\u003cli\u003eOwners looking for a high-quality performance upgrade that is genuinely purpose-built for this model\u003c\/li\u003e\n\u003cli\u003eAnyone who wants greater safety margins and more feedback-rich riding dynamics from their SKR 800 RR\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eQJ Motor SKR 800 RR — model years 2024, 2025, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: FQJ-S800\u003c\/li\u003e\n\u003cli\u003eType: Slipper clutch (anti-hopping wet clutch)\u003c\/li\u003e\n\u003cli\u003eFitment: QJ Motor SKR 800 RR (2024–2026)\u003c\/li\u003e\n\u003cli\u003eInstallation: Direct plug-and-play replacement\u003c\/li\u003e\n\u003cli\u003eClutch system: Wet clutch\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53169033150730,"sku":"SY-STMANTIH-51E044-01","price":1028.05,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/Screenshot2025-12-11112630.png?v=1780819786"},{"product_id":"stm-trockenkupplung-evo-sbk-yamaha-yzf-r1-m-rn65-20-26-ktt-04300","title":"STM EVO SBK Dry Clutch Kit Yamaha YZF-R1\/M RN32 RN49 RN65 (2015–2026) KTT-04300","description":"\u003cp\u003eBuilt to the exacting standards of World Superbike competition, the STM EVO SBK dry clutch kit KTT-04300 is a complete, race-derived assembly engineered specifically for the Yamaha YZF-R1 and R1M across all three generations — RN32, RN49 and RN65. Every component in this kit is manufactured to STM's highest EVO SBK specification, combining precision-machined aluminium with proven anti-hopping technology to deliver a transformation that is as immediately felt through your fingertips as it is heard through the iconic mechanical dry-clutch note.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eComplete dry clutch conversion kit including integrated 48D clutch basket and full friction disc set — everything required in a single package\u003c\/li\u003e\n\u003cli\u003eEVO SBK anti-hopping mechanism dramatically reduces rear-wheel hop under aggressive downshifting, keeping the chassis settled at corner entry\u003c\/li\u003e\n\u003cli\u003eExceptionally direct clutch feel and engagement feedback, giving the rider precise, confidence-inspiring control in all conditions\u003c\/li\u003e\n\u003cli\u003eReduced rotating mass compared to a standard wet clutch assembly, allowing the engine to rev more freely and respond faster\u003c\/li\u003e\n\u003cli\u003eHigher thermal tolerance than a conventional oil-bath clutch, maintaining consistent performance across extended track sessions\u003c\/li\u003e\n\u003cli\u003eAvailable in a choice of standard racing colours (red, black, natural grey, green) at a 10% premium, or fully bespoke custom colour combinations at a 40% premium — ideal for custom builds and show bikes\u003c\/li\u003e\n\u003cli\u003eSTM's EVO SBK platform is their flagship racing line, developed for riders who demand absolute precision and uncompromising performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Premium Materials\u003c\/h2\u003e\u003cp\u003eSTM has built its reputation on the uncompromising quality of its dry clutch systems, and the KTT-04300 represents the pinnacle of that engineering philosophy. The 48D clutch basket is a fully integrated, high-tolerance component machined from premium aluminium alloy, chosen for its exceptional strength-to-weight ratio and resistance to the thermal and mechanical stresses that characterise hard track use. The friction discs are selected to work in harmony with the basket geometry, ensuring consistent bite and progressive engagement regardless of oil temperature — because in a dry clutch system, there is no oil to worry about.\u003c\/p\u003e\u003cp\u003eThe EVO SBK anti-hopping mechanism is the result of years of development in circuit racing. Rather than simply reducing chatter under engine braking, it actively controls the clutch disengagement curve during downshifts, smoothing the drivetrain load spike and allowing the rear tyre to maintain its line with far greater predictability. The result is a corner entry that feels composed and deliberate, not anxious.\u003c\/p\u003e\u003cp\u003eColour choices are not an afterthought. STM anodises and finishes each basket to order, meaning the standard palette — red, black, natural grey and green — arrives with the same attention to surface quality as the mechanical components themselves. If those options do not suit your build, the custom colour programme opens up unique combinations that make the clutch a visual centrepiece as well as a mechanical one.\u003c\/p\u003e\u003ch2\u003eRoad and Track Performance\u003c\/h2\u003e\u003cp\u003eOn the road, the KTT-04300 rewards a confident, sporting riding style. The direct engagement feel sharpens every gear change, and the reduction in rotating mass gives the crossplane four-cylinder engine a noticeably more immediate throttle response. The characteristic mechanical sound that accompanies every shift is the same signature note heard in the Superbike World Championship paddock — a constant reminder of the engineering sitting between the frame rails.\u003c\/p\u003e\u003cp\u003eOn track, the advantages compound. Engine braking forces that would ordinarily destabilise the chassis under late, aggressive braking are absorbed and managed by the anti-hopping system. Lap after lap, corner after corner, the rear wheel behaves predictably, and the rider can focus entirely on line and braking point rather than managing unwanted chassis movement.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe STM EVO SBK dry clutch kit KTT-04300 is designed for all European-specification Yamaha YZF-R1 and R1M models across the following generations:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eYZF-R1 \/ R1M RN32 (2015–2016)\u003c\/li\u003e\n\u003cli\u003eYZF-R1 \/ R1M RN49 (2017–2019)\u003c\/li\u003e\n\u003cli\u003eYZF-R1 \/ R1M RN65 (2020–2026)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis broad fitment range makes the KTT-04300 one of the most versatile EVO SBK kits available for the R1 platform, covering the complete current generation of the model from its crossplane-engine redesign through to the latest production year.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: STM\u003c\/li\u003e\n\u003cli\u003ePart number: KTT-04300\u003c\/li\u003e\n\u003cli\u003eType: Complete dry clutch conversion kit\u003c\/li\u003e\n\u003cli\u003eClutch basket: 48D integrated design\u003c\/li\u003e\n\u003cli\u003eTechnology: EVO SBK anti-hopping\u003c\/li\u003e\n\u003cli\u003eMaterial: Precision-machined aluminium alloy\u003c\/li\u003e\n\u003cli\u003eFitment: Yamaha YZF-R1 \/ R1M RN32 (2015–2016), RN49 (2017–2019), RN65 (2020–2026)\u003c\/li\u003e\n\u003cli\u003eIntended use: Road and track\u003c\/li\u003e\n\u003cli\u003eColour options: Red, Black, Natural Grey, Green (+10%); custom combinations (+40%)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STM","offers":[{"title":"Default Title","offer_id":53169033314570,"sku":"KTT-04300","price":3986.47,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/Screenshot2025-12-11110150.png?v=1780819793"}],"url":"https:\/\/inter-pace.com\/en-ga\/collections\/clutches.oembed","provider":"Inter-Pace","version":"1.0","type":"link"}