Renthal Rear Sprocket 45T 520 Chain Yamaha 210U-520-45P-HA

If you're running a 520 chain on your Yamaha, sprocket wear directly impacts acceleration response and chain longevity. The Renthal 45T rear sprocket delivers a measurable reduction in unsprung weight while its self-cleaning mud grooves eliminate the debris buildup that accelerates premature wear. Built from 7075-T6 aluminum, this sprocket offers the durability you'd expect from steel at a significant weight advantage.

This is a bolt-on replacement that requires no special tools or fabrication—simply swap it in place of your worn sprocket and immediately feel the difference in throttle response and chain engagement.

• Chain Size: 520
• Tooth Count: 45T
• Material: 7075-T6 aluminum
• Weight: 66% lighter than steel
• Self-cleaning mud grooves
• CNC-machined construction
• Anodized finish
• Rear position mount
• Street riding application
• Installation: Bolt-on