Features1Durable Steel Material: Made of steel material, which is wearproof and durable to use. It is not easy to break, ensures high hardness for long term use. 2Smooth Operation: The 428 11T 20mm sprocket and 9T chain sprocket H hole ensures smooth and efficient power transmission, allowing for optimal performance. 3Versatile Use: Suitable for various applications, this sprocket can be used in motorcycles, electric scooter, ATVs, dirt bike, go karts, and other compatible vehicles. 4Easy to Install: The 428 11T 20mm sprocket and 9T chain sprocket are small and lightweight. Easy installation and smooth performance. Can lead to a good experience. 5 Accessories: The 428 11T 20mm sprocket and 9T chain sprocket is a wonderful replacement for your old or broken one, directly fitment. To improve efficiency and performance.SpecificationItem Type: Chain Sprocket KitMaterial: SteelWeight: Approx. 93g / 3.3ozPackage List2 xChainSprocket