Manufacturer's Part#: 4015100110

It drastically reduces vibration and is designed to accommodate 1 1/8" oversized handlebars

stylish component

The 3D design will fit you comfortably as well as keep you cool with its ventilation slots

DOT approved/H-rated

Supersprox - Sprocket 13 Front Yamaha SI (CST-564-13-1) past type tag-Helmets - Full-Face Manufacturer's Part#: 4015100110Drive Sprocket Front Drive Sprocket Supersprox front sprockets are the best on the market today, with a balance between performance and longevity. Features SCM435 Ni Chrome Molybdenum low corrosion steel. Case hardened surface for maximum water resistance. Low carbon core to prevent breakage. Has the ultimate combination of strength and hardness. Rear Drive Sprocket (many style available) Stealth Sprocket (aluminum & steel) Longer system life without