Description
The Renthal Rear Sprocket is designed for aftermarket Marchesini, OZ Racing, and BST Carbon rear wheels. It features a 520 pitch with 45 teeth and is precision-manufactured from 7075-T6 aluminum alloy, making it 66% lighter than steel while maintaining exceptional durability. The hard-anodized finish enhances wear resistance, and its advanced tooth profile ensures optimal power transfer and extended lifespan. Engineered for tight tolerances, this sprocket offers a precise fit and reliable performance.
397U-520-45P-HA made by Renthal









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