Renthal 518U-420-49GPSI Ultralight Grooved Rear Sprocket 420 Pitch 49 Tooth

The Renthal 518U-420-49GPSI Ultralight Grooved Rear Sprocket delivers championship-proven performance for off-road motorcycles. Precision CNC-machined from 7075 T6 aluminum alloy to extremely tight tolerances, this sprocket is 66% lighter than steel while maintaining exceptional durability for motocross, supercross, and enduro applications.

Key Features:

• Self-cleaning mud groove technology between each tooth prevents mud buildup that accelerates component wear
• Computer-engineered and tested for precise fit, concentricity, and load dispersion with optimized tooth profiling for maximum power transfer
• Anodized surface finish provides integral coating preventing corrosion
• 420 pitch chain compatibility with 49 tooth configuration
• Manufactured in the UK with cutting-edge methods and hardwearing surface treatments

Designed to minimize unsprung rotational mass while maximizing power delivery, this Renthal Ultralight sprocket is trusted by more factory race teams than any competing brand. The grooved design allows trapped mud to escape, preventing chain tension and premature wear in demanding off-road conditions.