{"product_id":"sitta-202p-rs660","title":"Sitta Aluminium Rear Sprocket Aprilia RS 660 (2020-2026) 202P – 37-48 Teeth, 520 Pitch","description":"\u003cp\u003eWhen every tenth of a second matters at the track, rotating mass is the enemy. The Sitta 202P aluminium rear sprocket for the Aprilia RS 660 (2020-2026) addresses that directly — tipping the scales at just 350 g in size 45, it trims unsprung and rotating weight simultaneously, sharpening throttle response and acceleration in a way no engine tune alone can match.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLightweight aluminium construction weighing just 350 g (size 45), reducing rotating mass for faster acceleration and more responsive handling on track and road alike.\u003c\/li\u003e\n\u003cli\u003eWide tooth range from 37 to 48 teeth in 520 pitch, letting you fine-tune gearing for specific circuits, sprint stages or your preferred road riding style.\u003c\/li\u003e\n\u003cli\u003eHigh-grade aluminium alloy with corrosion resistance built in, ensuring lasting reliability even under the heat cycles and mechanical stress of repeated track sessions.\u003c\/li\u003e\n\u003cli\u003eEight colour options including hard-anodised finish — more durable than standard anodising — plus silver, black, red, blue, gold, orange and green to match or contrast your RS 660's livery.\u003c\/li\u003e\n\u003cli\u003e100\/120-5 hole sprocket carrier pattern for a direct, secure fit with no modification required.\u003c\/li\u003e\n\u003cli\u003ePrecision CNC manufacturing to tight tolerances, guaranteeing consistent chain engagement and predictable power delivery lap after lap.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuilt for the RS 660 Rider Who Pushes Limits\u003c\/h2\u003e\u003cp\u003eThe Aprilia RS 660 is one of the most track-ready middleweights available, and the Sitta 202P is engineered to complement that intent. Reducing rotating inertia at the rear wheel means the engine's power translates more directly into forward motion — you feel the difference most acutely when rolling on out of slow corners or during rapid gear changes. The precision tooth profile keeps the 520 chain seated cleanly under hard acceleration and aggressive engine braking, minimising drivetrain snatch and extending chain life at the same time.\u003c\/p\u003e\u003ch2\u003eGearing Flexibility for Every Application\u003c\/h2\u003e\u003cp\u003eChoosing the right rear sprocket tooth count is one of the simplest and most cost-effective performance adjustments available. Fitting a larger sprocket increases acceleration and bottom-end pull — ideal for tight, technical circuits. A smaller count raises top speed and relaxes engine revs at motorway speeds. With 12 tooth options spanning 37 to 48, the Sitta 202P covers every realistic use case for the RS 660, from trackday sprint to long-distance road riding. Pairing it with a front sprocket change extends the range of ratios even further.\u003c\/p\u003e\u003ch2\u003eFinish \u0026amp; Colour Options\u003c\/h2\u003e\u003cp\u003eAll eight finishes are available across the full tooth range. The hard-anodised option offers superior surface hardness compared to conventional anodising, making it the preferred choice for riders who complete regular track days and want a sprocket that keeps its appearance under sustained use. The remaining colours — silver, black, red, blue, gold, orange and green — are standard anodised and give plenty of scope to coordinate with the RS 660's bodywork or wheel colour.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThis sprocket is designed specifically for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAprilia RS 660 — all variants, model years 2020 to 2026\u003c\/li\u003e\n\u003cli\u003eChain pitch: 520\u003c\/li\u003e\n\u003cli\u003eSprocket carrier: 100\/120-5 hole pattern\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\u003eSitta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e202P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eAluminium rear sprocket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Pitch\u003c\/th\u003e\n\u003ctd\u003e520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Range\u003c\/th\u003e\n\u003ctd\u003e37 – 48 teeth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e350 g (size 45)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSprocket Carrier\u003c\/th\u003e\n\u003ctd\u003e100\/120-5 hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003ctd\u003eAprilia RS 660 (2020-2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Colours\u003c\/th\u003e\n\u003ctd\u003eSilver, black, hard-anodised, red, gold, blue, orange, green\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sitta","offers":[{"title":"37 \/520 \/ 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