Description
A lightweight rear sprocket directly impacts your power delivery, acceleration, and overall drivetrain efficiency—especially critical if you’re optimizing your Yamaha’s performance on the track or trail. The SUPERSPROX 40-tooth design balances aggressive acceleration with top-end capability, while its grooved tooth profile keeps your chain cleaner and extends both sprocket and chain service life. Built from 7075-T6 aluminum and finished with durable anodizing, this is a precision component that won’t let you down when it matters most.
- Material: 7075-T6 aluminum
- Teeth: 40-tooth configuration
- Color: Black anodized
- Fitment: Yamaha-specific
- Finish: Durable anodizing
- Design: CNC-machined grooved teeth
- Benefit: Reduced chain wear
- Weight: Lightweight construction
- Installation: Bolt-on replacement
- MPN: RAL85340BLK









