Description
Rotational mass directly impacts acceleration and handling—every gram counts when you’re pushing performance limits. The Renthal 39T Ultralight Rear Sprocket cuts weight by roughly 66% compared to steel, delivering noticeable improvements in throttle response and chassis agility without sacrificing durability. CNC-machined from 7075-T6 aluminum with self-cleaning mud grooves, this sprocket maintains consistent traction while resisting wear and corrosion across demanding riding conditions.
- Tooth Count: 39T
- Chain Pitch: 520
- Material: 7075-T6 aluminum
- Weight Reduction: ~66% lighter
- Finish: Anodized silver
- Construction: CNC-machined
- Self-Cleaning: Mud grooves per tooth
- Corrosion Resistance: Anodized coating
- Fitment: Yamaha YFM250R, YFM700R, YFZ450, YFZ450X
- Installation: Bolt-on
