Sitta Aluminium Rear Sprocket Yamaha YZF-R1/M RN32/RN49 & RN65 (2015-2026) 202M – 37-47 Teeth, 525 Pitch

Few components define the character of a Yamaha YZF-R1 or YZF-R1M like the rear sprocket, and the Sitta 202M has been shaped with that philosophy at its core. Machined from high-grade aluminium and finished in eight distinct anodised colours, this sprocket pairs racetrack-honed precision with a visual refinement that marks it out as something more than a simple replacement part — it is a deliberate upgrade for riders who care about every detail, from the first corner to the last straight.

Key Features

• High-grade aluminium construction delivers outstanding strength at genuinely reduced rotating mass, sharpening throttle response and agility on both road and track.
• Hard-anodised finish option outlasts standard anodising, resisting wear and corrosion even under sustained high-load conditions.
• Eight colour options — silver, black, hard-anodised, blue, red, gold, green and orange — allow the sprocket to complement or contrast any livery.
• Eleven tooth counts from 37 to 47 teeth let you fine-tune gearing precisely to your circuit or riding style, all in a single 525-pitch specification.
• Sprocket carrier dimensions of 112 mm x 138 mm with a 5-hole bolt pattern ensure a direct, play-free fit without adaptation.
• Precise manufacturing tolerances mean straightforward installation and consistent chain alignment from the moment of fitting.

Design, Finish and Heritage

Sitta has been producing drivetrain components for competition and road use for decades, and the 202M carries that heritage visibly. The anodising is applied after machining, locking colour into the metal surface rather than sitting on top of it, which is why the finish resists chipping and fading long after lesser sprockets have lost their appeal. The hard-anodised variant takes this further still, producing a surface hardness that bridges the gap between aluminium convenience and steel durability — the preferred choice for riders covering high mileages or running demanding track programmes.

The sculpted spoke design reduces material where it is not needed, and every colour variant is held to the same dimensional tolerances as the unfinished billet. Whether you select the understated silver or the more assertive gold or orange, you are receiving the same precision part underneath.

Gearing and Performance

Selecting the correct tooth count is one of the most cost-effective performance adjustments available on the YZF-R1 platform. A smaller rear sprocket in the 37-to-42-tooth range shortens the overall gearing ratio, raising top speed and reducing engine revolutions on long, open sections — ideal for high-speed circuits or motorway touring. Moving up to the 43-to-47-tooth range lengthens the ratio in the rider's favour, producing stronger acceleration out of tight corners and a more responsive throttle through technical sections. The 202M's eleven-step range means riders can dial in the exact characteristic they want without compromise.

Fitment and Compatibility

The Sitta 202M is engineered specifically for the following models and is compatible with 525-pitch chains only:

• Yamaha YZF-R1 RN32/RN49 and RN65 (2015-2026)
• Yamaha YZF-R1M RN32/RN49 and RN65 (2015-2026)

Specifications