{"product_id":"sitta-aluminium-rear-sprocket-kawasaki-zx-6r-636-rr-201w-37-47","title":"Sitta Aluminium Rear Sprocket Kawasaki ZX-6R\/636\/RR (2007-2026) 201W – 37-47 Teeth, 525 Pitch","description":"\u003cp\u003eA direct-fit rear sprocket that works as hard on the daily commute as it does at a trackday — the Sitta 201W is machined from quality aluminium to give your Kawasaki ZX-6R, ZX-636 or ZX-6RR a lighter drivetrain without sacrificing durability. Available in tooth counts from 37 to 47 and in eight anodised colours, it lets you tailor both the gearing and the look of your bike in a single purchase.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLightweight aluminium construction reduces unsprung weight and rotating mass for sharper throttle response and more agile handling\u003c\/li\u003e\n\u003cli\u003e11 tooth options (37 through 47) allow precise gearing adjustment for road touring, commuting or track use\u003c\/li\u003e\n\u003cli\u003eEight colour choices — silver, black, hard-anodised, green, red, blue, orange and gold — so the sprocket complements your ZX-6R's livery\u003c\/li\u003e\n\u003cli\u003eHard-anodised finish offers superior surface hardness and wear resistance compared to standard anodising\u003c\/li\u003e\n\u003cli\u003eCarrier pattern 80\/104-6 hole ensures an accurate, rattle-free fit straight out of the box\u003c\/li\u003e\n\u003cli\u003ePrecision-machined tolerances mean no filing or adjustment needed during installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoosing the Right Tooth Count\u003c\/h2\u003e\u003cp\u003eSelecting the correct rear sprocket has a meaningful effect on how the ZX-6R feels every time you open the throttle. Use the guide below to match the tooth count to your riding priorities.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmaller sprocket (37-42 teeth): reduces overall gearing, lowers engine rpm at cruising speed and extends top-end reach — ideal for motorway miles and high-speed circuits\u003c\/li\u003e\n\u003cli\u003eLarger sprocket (43-47 teeth): raises overall gearing, sharpens acceleration out of slow corners and makes the bike feel more responsive in stop-start traffic or tight technical tracks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 201W's 11 available sizes mean there is a configuration to suit virtually every riding style — from relaxed road use to serious competition preparation — without replacing any other component.\u003c\/p\u003e\u003ch2\u003eBuild Quality and Finish\u003c\/h2\u003e\u003cp\u003eSitta manufactures the 201W from aluminium selected for its strength-to-weight ratio. Each sprocket is machined to close tolerances so that chain engagement is even across all teeth, reducing localised wear and extending service intervals. The hard-anodised colour option goes through an electrochemical process that converts the surface layer into a dense aluminium oxide, producing a finish that outlasts conventional anodising under repeated chain contact. The remaining seven colours are standard anodised, offering a clean, corrosion-resistant appearance that holds up well in road conditions.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Sitta 201W is designed exclusively for the following models:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eKawasaki ZX-6R \/ ZX-636 \/ ZX-6RR (2007-2026)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThis sprocket is compatible with 525 pitch chain only. Carrier pattern: 80\/104-6 hole. Part number: 201W.\u003c\/p\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\u003e201W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eRear sprocket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Pitch\u003c\/th\u003e\n\u003ctd\u003e525\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Tooth Counts\u003c\/th\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\u003cth\u003eCarrier Pattern\u003c\/th\u003e\n\u003ctd\u003e80\/104-6 hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable 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