Upgrade your Yamaha motorcycle with the RENTHAL Sprocket, part number 131U-520-49GBSI. This high-performance sprocket is CNC-machined from a specially enhanced 7075-T6 aluminum alloy, providing exceptional strength and durability while being significantly lighter than traditional steel sprockets. Designed with self-cleaning mud grooves on each tooth, this sprocket helps prevent mud buildup, ensuring optimal performance in various conditions. Features: * Material: Crafted from specially enhanced 7075-T6 aluminum alloy for superior strength and lightweight performance * Self-Cleaning Design: Features machined mud grooves at each tooth to minimize mud buildup and enhance wear resistance * Ultralight Construction: Weighs 66% less than comparable steel sprockets, improving overall bike performance