Description
The Renthal Ultralight Rear Sprocket is a high-performance upgrade designed for Yamaha YZ125-450 and WR250-450 models from 1999 to 2024. CNC-machined from specially enhanced 7075-T6 aluminum alloy, this sprocket is 66% lighter than steel while maintaining exceptional durability. Engineered for motocross, Supercross, and enduro riding, it features an advanced tooth profile for maximum power transfer and extended chain life. Precision machining ensures a perfect fit and optimal load distribution. Self-cleaning mud grooves at each tooth help prevent dirt buildup, improving wear resistance and performance in harsh conditions. With a combination of high-strength materials and cutting-edge manufacturing, Renthal’s Ultralight Rear Sprocket is the choice of top factory race teams. This model is silver with 47 teeth and designed for use with a 520 chain.
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