Description
Unsprung weight directly impacts your Yamaha’s acceleration and chassis response—every gram matters on the track or trail. This Renthal ultralight rear sprocket cuts 66% of the mass from your drivetrain while maintaining the durability you need for sustained performance. The CNC-machined 7075-T6 aluminum construction and self-cleaning tooth design keep power flowing consistently, lap after lap or ride after ride.
- Tooth Count: 36
- Chain Size: 520
- Material: 7075-T6 aluminum alloy
- Finish: Anodized silver
- Weight Reduction: ~66% vs. steel
- Design Feature: Self-cleaning mud grooves
- Installation: Bolt-on replacement
- Compatibility: Yamaha 36-tooth sprocket applications
- Part Number: 437U-520-36GBSI




