Sitta Aluminium Rear Sprocket Kawasaki ZX-10R/RR Ninja (2004-2026) 201W – 37-47 Teeth, 520 Pitch

Engineered 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.

Key Features

• Ultralight aluminium construction weighing just 350 g at size 45, reducing unsprung mass for improved handling response
• 520 pitch specification, optimised for performance and racing applications
• Eleven tooth options from 37 to 47 teeth for precise gearing adjustment to suit any riding style or circuit
• Eight finish options including hard-anodised — more durable than standard anodising — plus black, silver, orange, blue, gold, red and green
• Sprocket carrier bolt pattern 80/104-6 hole for accurate, straightforward fitment
• High wear resistance under sustained load, maintaining consistent power transfer across track days and road miles alike

Choosing the Right Tooth Count

Gearing 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.

A 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.

Build Quality and Finish

Sitta 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.

Fitment and Compatibility

The Sitta 201W rear sprocket fits the following models:

• Kawasaki ZX-10R Ninja (2004 – 2026)
• Kawasaki ZX-10RR Ninja (2017 – 2026)
• Compatible with 520 pitch chain only
• Sprocket carrier: 80/104-6 hole bolt pattern

Specifications