Description
If you’re running a Yamaha with a 520 chain, sprocket weight directly impacts acceleration and overall bike handling—and this Renthal 40-tooth rear sprocket delivers measurable gains. At 66% lighter than steel alternatives, the 7075-T6 aluminum construction maintains durability while reducing rotational mass, giving you quicker throttle response and improved agility whether you’re on the track or tackling technical terrain. The integrated self-cleaning mud grooves keep debris from accumulating between teeth, ensuring consistent power delivery and extending sprocket life in demanding conditions.
Technical Specifications:
- Tooth Count: 40
- Chain Size: 520
- Material: 7075-T6 Aluminum
- Weight: 0.65 lbs
- Position: Rear
- CNC-machined construction
- Self-cleaning mud grooves
- Color: Silver
- MPN: 130U-520-40GBSI
- Fitment: Yamaha 130U-520 chain
- Installation: Bolt-on
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