Sitta Aluminium Rear Sprocket Yamaha YZF-R1 (2003-2014) 201M – 37-48 Teeth, 520 Pitch
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Crafted from precision-machined aluminium and finished in a palette of eight anodised colours, the Sitta 201M rear sprocket brings race-bred heritage and unmistakable style to the Yamaha YZF-R1 drivetrain. Whether you are chasing lap times or simply demanding the best from a decade-old superbike platform, this is a sprocket built to the same exacting standards that have made Sitta a trusted name in European motorsport.
Key Features
- Lightweight aluminium construction weighing just 350 g at 45 teeth — reducing unsprung rotational mass for sharper throttle response and improved handling.
- Eight finish options including silver, black, hard-anodised, red, blue, gold, green and orange — hard-anodising delivering significantly greater surface hardness and longevity than standard anodising.
- Broad tooth range from 37 to 48 teeth on a 520 pitch, allowing precise gearing adjustment for road sport or track use.
- Sprocket carrier pattern 110/130-6 bolt for accurate, straightforward installation on the YZF-R1 hub.
- Engineered for high-load durability — the alloy and surface treatment resist wear even under sustained track conditions.
- Part number 201M — a Sitta catalogue reference with a long competition heritage.
Dialling In Your Gearing
The 520 pitch and twelve tooth options make the 201M one of the most versatile sprockets available for the R1 platform. Selecting a smaller sprocket in the 37-to-42 tooth range lengthens the overall gearing ratio, raising top speed and reducing engine revs at motorway pace — ideal for open circuits or long touring stints. Moving up to the 43-to-48 tooth range shortens the ratio, sharpening acceleration out of slow corners and making the bike feel more responsive through technical sections. Pairing a new rear sprocket with a matched front sprocket and fresh 520 chain will unlock the full benefit of any ratio change.
Finish and Heritage
Sitta has been producing drivetrain components for road and competition machines across Europe for decades. The 201M reflects that lineage: tolerances are held tight, the tooth profile is optimised for 520 chain engagement, and every colour option receives a consistent, hard-wearing anodised layer. The hard-anodised variant in particular offers a surface that resists abrasion from chain contact and road debris far beyond what standard anodising can provide, making it the finish of choice for riders who log serious mileage.
Fitment and Compatibility
- Yamaha YZF-R1 — model years 2003 to 2014
- 520 pitch only
- Sprocket carrier: 110/130-6 bolt pattern
Specifications
| Brand | Sitta |
|---|---|
| Part Number | 201M |
| Material | Aluminium |
| Weight | approx. 350 g (at 45 teeth) |
| Chain Pitch | 520 |
| Tooth Range | 37 – 48 teeth |
| Sprocket Carrier | 110/130-6 bolt |
| Fitment | Yamaha YZF-R1 (2003-2014) |
| Available Finishes | Silver, black, hard-anodised, red, blue, gold, green, orange |
| Brand | Sitta |
|---|---|
| Part Number | 201M |
| Material | Aluminium |
| Weight | approx. 350 g (at 45 teeth) |
| Chain Pitch | 520 |
| Tooth Range | 37 – 48 teeth |
| Sprocket Carrier | 110/130-6 bolt |
| Fitment | Yamaha YZF-R1 (2003-2014) |
| Available Finishes | Silver, black, hard-anodised, red, blue, gold, green, orange |
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// Sitta
Sitta Aluminium Rear Sprocket Yamaha YZF-R1 (2003-2014) 201M – 37-48 Teeth, 520 Pitch

Tech specs
- Brand
- Sitta
- Part Number
- 201M
- Material
- Aluminium
- Weight
- approx. 350 g (at 45 teeth)
- Chain Pitch
- 520
- Tooth Range
- 37 – 48 teeth
- Sprocket Carrier
- 110/130-6 bolt
- Fitment
- Yamaha YZF-R1 (2003-2014)
- Available Finishes
- Silver, black, hard-anodised, red, blue, gold, green, orange
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
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