{"product_id":"sitta-201w","title":"Sitta Aluminium Rear Sprocket Kawasaki ZX-10R\/RR Ninja (2004-2026) 201W – 37-47 Teeth, 520 Pitch","description":"\u003cp\u003eEngineered for the ZX-10R and ZX-10RR across every generation from 2004 to 2026, the Sitta 201W aluminium rear sprocket lets you tailor your Kawasaki's gearing with precision — selecting from eleven tooth counts between 37 and 47 to match your riding style, whether that means chasing top speed on long straights or sharpening acceleration for technical circuits and spirited road riding.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUltralight aluminium construction weighing just 350 g at size 45, reducing unsprung mass for improved handling response\u003c\/li\u003e\n\u003cli\u003e520 pitch specification, optimised for performance and racing applications\u003c\/li\u003e\n\u003cli\u003eEleven tooth options from 37 to 47 teeth for precise gearing adjustment to suit any riding style or circuit\u003c\/li\u003e\n\u003cli\u003eEight finish options including hard-anodised — more durable than standard anodising — plus black, silver, orange, blue, gold, red and green\u003c\/li\u003e\n\u003cli\u003eSprocket carrier bolt pattern 80\/104-6 hole for accurate, straightforward fitment\u003c\/li\u003e\n\u003cli\u003eHigh wear resistance under sustained load, maintaining consistent power transfer across track days and road miles alike\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoosing the Right Tooth Count\u003c\/h2\u003e\u003cp\u003eGearing selection has a direct impact on how your ZX-10R behaves in every situation. Getting it right means the bike works with you rather than against you, and the 201W makes that adjustment simple.\u003c\/p\u003e\u003cp\u003eA smaller rear sprocket in the 37-to-42-tooth range raises overall gearing, reducing engine rpm at motorway speeds and extending top-end reach — the natural choice for circuits with long straights or fast cross-country touring. Moving up to the 43-to-47-tooth range shortens gearing, sharpening throttle response out of slow corners and producing more aggressive acceleration — ideal for tight, technical tracks or urban sportsbike riding where instant drive matters more than outright top speed.\u003c\/p\u003e\u003ch2\u003eBuild Quality and Finish\u003c\/h2\u003e\u003cp\u003eSitta machines the 201W from high-grade aluminium, keeping weight to a minimum without compromising structural integrity under the sustained loads of hard acceleration and track use. The hard-anodised finish option delivers a surface hardness that outlasts conventional anodising, resisting wear and corrosion even when the drivetrain is running in demanding conditions. The seven further colour choices — black, silver, orange, blue, gold, red and green — allow the sprocket to complement or contrast any ZX-10R livery, from factory superbike colours to custom builds.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Sitta 201W rear sprocket fits the following models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eKawasaki ZX-10R Ninja (2004 – 2026)\u003c\/li\u003e\n\u003cli\u003eKawasaki ZX-10RR Ninja (2017 – 2026)\u003c\/li\u003e\n\u003cli\u003eCompatible with 520 pitch chain only\u003c\/li\u003e\n\u003cli\u003eSprocket carrier: 80\/104-6 hole bolt pattern\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\u003e201W\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 (size 45)\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 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 Bolt Pattern\u003c\/td\u003e\n\u003ctd\u003e80\/104 – 6 hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eKawasaki ZX-10R Ninja (2004–2026), ZX-10RR Ninja (2017–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Finishes\u003c\/td\u003e\n\u003ctd\u003eSilver, Black, 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