{"product_id":"k-tech-dds-closed-cartridge-kit-yamaha-yzf-r1-rn32-rn49-rn65-155-015","title":"K-Tech DDS Closed Cartridge Kit (+10mm) Yamaha YZF-R1 RN32, RN49, RN65 (2015-2026) 155-015-270-021","description":"\u003cp\u003eUpgrade your Yamaha YZF-R1's stock fork with a cartridge system trusted at the British Superbike Championship and the Isle of Man TT — yet equally rewarding on everyday road and track-day use. The K-Tech DDS Closed Cartridge Kit (+10mm) replaces the factory internals with a precision Direct Damping System that delivers consistent, fully adjustable damping wherever you ride, without the unpredictability of a standard open cartridge.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect Damping System (DDS) engineered specifically for the YZF-R1 stock fork legs, retaining the original fork tubes for a straightforward installation\u003c\/li\u003e\n\u003cli\u003ePressurised closed cartridge design with a 20 mm piston and 31 mm control pistons for high oil flow, dramatically reducing response lag and improving feel across all speeds\u003c\/li\u003e\n\u003cli\u003ePatented cavitation-elimination design ensures consistent damping performance whether you are navigating urban traffic or pushing hard on a circuit\u003c\/li\u003e\n\u003cli\u003e+10 mm extended top caps provide the extra clearance needed for refined spring preload management\u003c\/li\u003e\n\u003cli\u003e30 compression clicks of adjustment range, with suggested baseline settings of 16 compression clicks, 18 rebound clicks and 10 mm preload — making initial setup quick and accessible\u003c\/li\u003e\n\u003cli\u003eSupplied with three pairs of 36-260-series springs to suit a broad spread of rider weights and riding styles\u003c\/li\u003e\n\u003cli\u003eProven at the highest levels of competition, including British Superbike and Isle of Man TT\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Performance\u003c\/h2\u003e\u003cp\u003eK-Tech engineered the DDS Closed Cartridge Kit around a pressurised oil circuit that keeps the 20 mm piston in constant contact with a stable fluid column. The 31 mm control pistons allow a generous oil flow path, so the damping force tracks wheel movement faithfully rather than spiking under hard braking or mid-corner bumps. The 8 mm piston rod minimises offset inside the cartridge body, keeping friction low and the damping curve predictable whether the fork is moving slowly through a gentle undulation or reacting sharply to a kerb strike.\u003c\/p\u003e\u003cp\u003eThe patented cavitation-prevention geometry means there are no air pockets forming at high shaft velocities — a problem that causes the sudden loss of damping force felt as fork dive on standard cartridges. The result is a fork that behaves the same on lap twenty as it did on lap one, an advantage that matters as much on a long touring run as it does on a race circuit.\u003c\/p\u003e\u003ch2\u003eEveryday Usability and Value\u003c\/h2\u003e\u003cp\u003eNot every DDS Closed Cartridge Kit is built around track-only compromise. The three included spring pairs and the clearly defined baseline click settings mean a competent home mechanic can achieve a well-sorted road setup before ever visiting a suspension technician. The wide 30-click compression range then allows fine-tuning as your familiarity with the bike grows. K-Tech recommends final installation and initial setup be carried out by an authorised K-Tech Service Centre to ensure the cartridge is pressurised and shimmed correctly, protecting the investment and guaranteeing the warranty.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis kit fits the following Yamaha models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eYamaha YZF-R1 RN32 (2015-2016)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1 RN49 (2017-2020)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1 RN65 (2021-2026)\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\u003eInner diameter\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter diameter\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e693 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston diameter\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl piston diameter\u003c\/td\u003e\n\u003ctd\u003e31 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston rod diameter\u003c\/td\u003e\n\u003ctd\u003e8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring series\u003c\/td\u003e\n\u003ctd\u003e36-260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression clicks (suggested)\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound clicks (suggested)\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreload (suggested)\u003c\/td\u003e\n\u003ctd\u003e10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop cap extension\u003c\/td\u003e\n\u003ctd\u003e+10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e155-015-270-021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"K-Tech","offers":[{"title":"Default Title","offer_id":53168849617162,"sku":"155-015-270-021","price":2040.36,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/DDS.png?v=1780817529","url":"https:\/\/inter-pace.com\/products\/k-tech-dds-closed-cartridge-kit-yamaha-yzf-r1-rn32-rn49-rn65-155-015","provider":"Inter-Pace","version":"1.0","type":"link"}