{"product_id":"sitta-202m","title":"Sitta Aluminium Rear Sprocket Yamaha YZF-R1\/M RN32\/RN49 \u0026 RN65 (2015-2026) (202M) – 37-47 Teeth, 520 Pitch","description":"\u003cp\u003eSitta's 202M rear sprocket brings race-proven aluminium engineering and a striking eight-colour palette to the Yamaha YZF-R1 and YZF-R1M, covering every RN32, RN49 and RN65 chassis from 2015 through 2026. Weighing just 350 g in 45-tooth trim, it is the kind of component that earns its place on a World Superbike-derived machine — lightweight where it matters, precise in its fit, and available in a tooth range wide enough to transform the character of the bike entirely.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUltra-light aluminium construction — only 350 g (45-tooth size), reducing unsprung and rotating mass for sharper throttle response\u003c\/li\u003e\n\u003cli\u003eEight anodised finishes available: silver, black, hard-anodised, blue, red, gold, green and orange — hard-anodised option outlasts standard anodising for extended service life\u003c\/li\u003e\n\u003cli\u003eFull tooth range from 37 to 47 teeth in 520 pitch, allowing precise gearing adjustment for road or track use\u003c\/li\u003e\n\u003cli\u003eSprocket carrier spec 112\/138 — 5-bolt mount for accurate, rattle-free installation on RN32, RN49 and RN65 frames\u003c\/li\u003e\n\u003cli\u003eEngineered for low wear under sustained high load, suitable for race-track duty and spirited road riding alike\u003c\/li\u003e\n\u003cli\u003ePart number 202M — a catalogued Sitta reference for straightforward ordering and reordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFinish, Design and Heritage\u003c\/h2\u003e\u003cp\u003eSitta has supplied drivetrain components to the racing paddock for decades, and the 202M reflects that lineage in every detail. The anodised surface does more than look the part: it hardens the aluminium against the constant abrasion of chain contact and the thermal cycling that comes with track sessions. The hard-anodised variant goes a step further, producing a surface harder than standard anodising and significantly more resistant to wear — an important consideration when you are running a lightweight 520-pitch setup at sustained high revs.\u003c\/p\u003e\u003cp\u003eThe colour range — silver, black, hard-anodised, blue, red, gold, green and orange — means the 202M sits naturally alongside aftermarket wheels, caliper finishes and frame details without looking like an afterthought. Each finish is applied with the same dimensional precision, so whichever colour you select, the sprocket runs true on the 112\/138 five-bolt carrier.\u003c\/p\u003e\u003ch2\u003eGearing Strategy\u003c\/h2\u003e\u003cp\u003eThe 520-pitch chain standard is the natural choice for a performance-oriented R1 build, offering a meaningful weight saving over the stock 530 pitch while maintaining the tensile strength needed for track use. Within that pitch, the 202M gives you eleven tooth options to dial in exactly the gearing character you want.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmaller sprockets (37-42 teeth): shorter overall gearing, raising top speed potential and reducing engine revs on fast, open circuits or motorway stretches\u003c\/li\u003e\n\u003cli\u003eLarger sprockets (43-47 teeth): taller overall gearing, sharpening acceleration out of slow corners and making the power more accessible in technical, stop-start sections\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe right choice depends on your circuit, riding style and whether the bike also sees road use — but the range covered by the 202M means you can fine-tune without compromise.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYamaha YZF-R1 RN32 \/ RN49 \/ RN65 (2015-2026)\u003c\/li\u003e\n\u003cli\u003eYamaha YZF-R1M RN32 \/ RN49 \/ RN65 (2015-2026)\u003c\/li\u003e\n\u003cli\u003eCompatible with 520 pitch chain only\u003c\/li\u003e\n\u003cli\u003eSprocket carrier: 112\/138 — 5-bolt\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\u003eSitta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e202M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eapprox. 350 g (45-tooth)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChain pitch\u003c\/td\u003e\n\u003ctd\u003e520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable teeth\u003c\/td\u003e\n\u003ctd\u003e37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSprocket carrier\u003c\/td\u003e\n\u003ctd\u003e112\/138 — 5-bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable colours\u003c\/td\u003e\n\u003ctd\u003eSilver, Black, Hard-anodised, Blue, Red, Gold, Green, Orange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eYamaha YZF-R1\/M RN32\/RN49\/RN65 (2015-2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sitta","offers":[{"title":"37 \/520 \/ Silver","offer_id":53166935605514,"sku":"si202m37si520","price":56.6,"currency_code":"EUR","in_stock":true},{"title":"37 \/520 \/ Black","offer_id":53166935638282,"sku":"si202m37sw520","price":73.19,"currency_code":"EUR","in_stock":true},{"title":"37 \/520 \/ 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