1Function: Provide greater power transmission, better transmission performance for vehicle operation, provides smooth running capability with long lifespan. 2Premium Material: The use of carbon steel materials, heat treatment to increase wear resistance and strength, professional manufacturing, exquisite workmanship, long service life. 3Features: Stable performance, excellent performance, high reliability, suitable for sprocket replacement, maintenance, and upgrade with maximum power transmission. 4Special Treatment: The surface of the durable sprocket is smooth after polishing. No worry about scratching your hands during installation, which can be used for a long time and is not easy to rust. 5Fitment: Fits for TaoTao, tforce, Roketa, Coolster, Buyang, for Kymco, Kazuma, Sunl. And Chinese Atv, Dirt Pit Bike, Quad, 4 wheel Go Kart, trike, motorcycle.