{"product_id":"sitta-201u-525","title":"Sitta Aluminium Rear Sprocket Triumph Street Triple 765 S \/ R \/ RS \/ Moto2 \u0026 Daytona 765 Moto2 (2017-2026) (201U) – 37-47 Teeth, 525 Pitch","description":"\u003cp\u003ePrecision-machined from premium aluminium alloy, the Sitta 201U rear sprocket is built to meet the exacting demands of the Triumph Street Triple 765 and Daytona 765 Moto2 — whether you're chasing lap times on track or demanding uncompromising reliability on the road. With a verified weight of just 350 g at size 45, the 201U delivers a meaningful reduction in unsprung mass without any sacrifice in structural rigidity.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCNC-machined premium aluminium construction for maximum strength at minimum weight — only 350 g at size 45\u003c\/li\u003e\n\u003cli\u003e525 pitch, compatible with the full Street Triple 765 and Daytona 765 Moto2 drivetrain specification (2017–2026)\u003c\/li\u003e\n\u003cli\u003eAvailable in 37 to 47 teeth for precise gearing adjustment to suit your riding style and circuit\u003c\/li\u003e\n\u003cli\u003eSprocket carrier interface: 106\/125 mm, 6-bolt pattern for accurate, rattle-free fitment\u003c\/li\u003e\n\u003cli\u003eChoice of eight finishes: silver, black, hard-anodised, red, gold, blue, orange and green — hard-anodised offers superior surface hardness and longevity over standard anodising\u003c\/li\u003e\n\u003cli\u003eExceptional wear resistance under sustained high loads, whether street or track\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eThe Sitta 201U is produced using aerospace-grade aluminium that strikes the ideal balance between rigidity and low mass. Every sprocket is CNC-machined to tight tolerances, ensuring tooth profile accuracy that translates directly into smooth, low-vibration power delivery and reduced chain wear. The hard-anodised finish option provides a surface that is significantly harder and more abrasion-resistant than conventional anodising, making it the preferred choice for riders who push hard over extended mileage. All other colour options are finished to the same high standard, offering a clean, uniform appearance that holds up to road grime and chain oil.\u003c\/p\u003e\u003ch2\u003eGearing and Performance\u003c\/h2\u003e\u003cp\u003eSelecting the right tooth count is one of the most effective and cost-efficient ways to tune your Triumph's power delivery. The Sitta 201U covers a wide 37-to-47-tooth range, giving you meaningful gearing flexibility:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmaller sprockets (37–42 teeth): taller gearing, reduced engine rpm at cruising speed, higher top speed — ideal for motorway-heavy routes or fast circuits with long straights\u003c\/li\u003e\n\u003cli\u003eLarger sprockets (43–47 teeth): shorter gearing, sharper acceleration and more responsive throttle feel — suited to technical tracks, urban riding or riders who prefer a more aggressive power band\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWith eleven tooth options available, the 201U allows you to dial in exactly the characteristic you want from your Street Triple or Daytona 765 without changing any other drivetrain component.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Sitta 201U rear sprocket is engineered specifically for the following models. Compatibility is limited to 525 pitch chains only.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTriumph Street Triple 765 S (2017–2026)\u003c\/li\u003e\n\u003cli\u003eTriumph Street Triple 765 R (2017–2026)\u003c\/li\u003e\n\u003cli\u003eTriumph Street Triple 765 RS (2017–2026)\u003c\/li\u003e\n\u003cli\u003eTriumph Street Triple 765 Moto2 (2017–2026)\u003c\/li\u003e\n\u003cli\u003eTriumph Daytona 765 Moto2 (2017–2026)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSprocket carrier interface: 106\/125 mm, 6-bolt. Please note: product images show sprockets that are visually similar to the 201U but may not depict this exact model.\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\u003eSitta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e201U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eRear sprocket\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\u003e350 g (size 45)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePitch\u003c\/td\u003e\n\u003ctd\u003e525\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable tooth counts\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\u003e106\/125 mm, 6-bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable finishes\u003c\/td\u003e\n\u003ctd\u003eSilver, black, hard-anodised, red, gold, blue, orange, green\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eTriumph Street Triple 765 S\/R\/RS\/Moto2, Daytona 765 Moto2 (2017–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sitta","offers":[{"title":"37 \/525 \/ Silver","offer_id":53167949742346,"sku":"si201U37si525","price":60.5,"currency_code":"EUR","in_stock":true},{"title":"37 \/525 \/ 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