Rear Sprocket Grooved – Sil 520-50 Teeth

Description

The Renthal Ultralight Rear Sprocket is a high-performance upgrade designed for Yamaha dirt bikes, including YZ125, YZ250, YZ450F, WR250F, and WR450F models from 1999 to 2024. This sprocket is CNC-machined from 7075-T6 aluminum alloy, making it 66% lighter than steel while maintaining exceptional durability. It features advanced tooth profiling for maximum power transfer, precise concentricity, and a tight fit to ensure efficient load distribution. The sprocket also includes self-cleaning mud grooves at each tooth to prevent dirt buildup and enhance wear resistance, making it ideal for motocross, supercross, and enduro riding. Manufactured to exacting standards, Renthal’s rear sprockets are used by top factory race teams worldwide, delivering a long lifespan and superior performance on the track or trail.