Description
If you’re running a Yamaha WR or YZ and want measurable gains in acceleration and handling without adding weight, upgrading to a lightweight aluminum sprocket is one of the highest-return modifications you can make. The Renthal 48-tooth rear sprocket cuts rotating mass by approximately 66% compared to steel, translating directly to quicker throttle response and reduced strain on your drivetrain. Built from enhanced 7075-T6 aluminum with CNC-machined self-cleaning grooves, this sprocket maintains consistent power transfer even in muddy terrain while resisting premature wear.
- Tooth Count: 48
- Chain Size: 520
- Material: 7075-T6 aluminum
- Weight Reduction: 66% lighter than steel
- Construction: CNC-machined
- Self-Cleaning: Mud grooves per tooth
- Finish: Blue with corrosion resistance
- Fitment: Yamaha WR and YZ models
- Position: Rear
- Part Number: 150U-520-48GBBU
