{"product_id":"sitta-rear-sprocket-pvm-sprocket-carrier-37-47","title":"Sitta Rear Sprocket for PVM Sprocket Carrier (201J) – 37-47 Teeth, 520 Pitch","description":"\u003cp\u003eWhen lap times matter, every gramme counts. The Sitta 201J aluminium rear sprocket is engineered for riders who demand race-ready precision from their drivetrain — weighing just 350 g at size 45 and available in tooth counts from 37 to 47, it lets you dial in exactly the gearing your track session or sprint stage demands. Paired with the PVM sprocket carrier via an 80\/100-5 bolt pattern, installation is clean and positive every time.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUltralight aluminium construction — only 350 g at size 45, keeping unsprung weight to a minimum for sharper turn-in and faster acceleration response.\u003c\/li\u003e\n\u003cli\u003e520-pitch specification, optimised for performance and racing use where reduced chain mass translates directly into drivetrain efficiency.\u003c\/li\u003e\n\u003cli\u003eWide tooth-count range from 37 to 47 teeth, covering everything from high-speed track configurations to aggressive short-circuit gearing.\u003c\/li\u003e\n\u003cli\u003eEight colour options including hard-anodised finish — more durable than standard anodising — plus black, silver, gold, red, blue, orange and green for a personalised build.\u003c\/li\u003e\n\u003cli\u003e80\/100-5 hole pattern engineered specifically for PVM sprocket carriers, ensuring precise alignment and a rattle-free fitment.\u003c\/li\u003e\n\u003cli\u003eHigh resistance to wear under sustained heavy load, maintaining consistent power transfer across race distances and spirited road riding alike.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGearing Strategy: Choosing Your Tooth Count\u003c\/h2\u003e\u003cp\u003eThe Sitta 201J gives you genuine flexibility to tailor your motorcycle's character to the circuit or road section in front of you. Understanding how tooth count affects behaviour makes the choice straightforward.\u003c\/p\u003e\u003cp\u003eA smaller rear sprocket in the 37-to-42-tooth range raises overall gearing, reducing engine rpm at a given road speed and extending your top speed — the sensible choice for fast, flowing circuits with long straights or motorway-heavy touring stages.\u003c\/p\u003e\u003cp\u003eStepping up to the 43-to-47-tooth range lowers overall gearing for snappier acceleration and more responsive throttle feel out of tight corners — exactly what short, technical circuits and twisting mountain roads reward. With eleven tooth-count options across a single part number, you can carry a spare sprocket pre-selected for a different venue without changing any other component.\u003c\/p\u003e\u003ch2\u003eBuild Quality and Finish\u003c\/h2\u003e\u003cp\u003eSitta manufactures the 201J from high-grade aluminium, balancing the tensile strength required to survive repeated hard acceleration loads against the weight savings that make a measurable difference on track. The hard-anodised option goes through a thicker, denser oxide layer than conventional anodising, resisting surface abrasion and chain-induced wear for a significantly longer service life — a worthwhile upgrade for riders who cover high annual mileage or compete regularly. All other colour options receive a quality anodised finish that protects the alloy while delivering a consistent, factory-level appearance.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Sitta 201J is designed exclusively for motorcycles fitted with a PVM sprocket carrier. The sprocket uses an 80\/100-5 bolt pattern and is compatible with 520-pitch chains only. Verify your current carrier manufacturer and chain pitch before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCarrier: PVM sprocket carrier\u003c\/li\u003e\n\u003cli\u003eBolt pattern: 80\/100-5\u003c\/li\u003e\n\u003cli\u003eChain pitch: 520 only\u003c\/li\u003e\n\u003cli\u003eAvailable teeth: 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47\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\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e201J\u003c\/td\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\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (size 45)\u003c\/td\u003e\n\u003ctd\u003eapprox. 350 g\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\u003eCarrier compatibility\u003c\/td\u003e\n\u003ctd\u003ePVM sprocket carrier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolt pattern\u003c\/td\u003e\n\u003ctd\u003e80\/100-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable colours\u003c\/td\u003e\n\u003ctd\u003eSilver, Black, Hard-anodised, Gold, Red, Blue, Orange, Green\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sitta","offers":[{"title":"37 \/520 \/ Silver","offer_id":53166914404618,"sku":"si201J37si520","price":56.6,"currency_code":"EUR","in_stock":true},{"title":"37 \/520 \/ 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