Description
A lighter rear sprocket directly improves acceleration, handling, and unsprung weight—critical factors whether you’re racing on track or tackling technical terrain. The Renthal 51-tooth sprocket combines 7075-T6 aluminum construction with CNC-machined self-cleaning grooves, delivering durability and consistent power transfer without the weight penalty of steel. The blue anodized finish resists corrosion while maintaining the precision engineering your Yamaha demands.
- Material: 7075-T6 aluminum
- Tooth Count: 51
- Chain Size: 520
- Weight Reduction: 66% lighter than steel
- Mounting Position: Rear
- Self-Cleaning Grooves: CNC-machined
- Finish: Blue anodized
- Installation: Bolt-on
- Part Number: 150U-520-51GBSI
- Fitment: Yamaha 520-chain models
