Rear Sprocket Grooved – Blu 520-50 Teeth

Description

The Renthal Ultralight Rear Sprocket is a high-performance rear chainwheel designed for Yamaha dirt bikes, including YZ125, YZ250, YZ450F, WR250F, and WR450F models from 1999 to 2024. Made from 7075-T6 aluminum alloy, this sprocket is 66% lighter than steel while maintaining exceptional durability. Precision CNC machining ensures a precise fit, optimal power transfer, and improved longevity. The advanced tooth profile and concentricity enhance efficiency, while self-cleaning mud grooves prevent dirt buildup, making it ideal for motocross, supercross, and enduro riding. This sprocket features 50 teeth and a blue anodized finish.