Description
If you’re running a high-performance build on your Yamaha, every gram of unsprung weight matters—and this Renthal sprocket delivers a measurable advantage. At 66% lighter than steel alternatives, the 37-tooth design reduces rotational mass while maintaining the strength needed for aggressive riding. The self-cleaning mud grooves keep your chain engagement sharp and your sprocket lasting longer, whether you’re racing on the track or pushing hard in the dirt.
- Material: 7075-T6 Aluminum
- Tooth Count: 37
- Chain Size: 520
- Position: Rear
- Weight: ~0.5 lbs
- Finish: Silver, corrosion-resistant
- Design: CNC-machined precision
- Mud Grooves: Self-cleaning at each tooth
- Fitment: Yamaha YFM250R, YFM350R, YFM700R, YFZ450, YFZ450R, YFZ450X
- MPN: 437U-520-37GBSI
