Features1Application: Suitable for DIY scooters, bicycles, ATVs, motorcycles, 4 wheeled off road vehicles and various mechanical power modifications. 2Carbon Steel Material: Made of carbon steel material, this set provides maximum power transmission and has a long service life. 3Durable Forging Technique: With a corrosionproof and deformation resistant forging technique, this set is built to last, ensuring superior performance and a sleek appearance. 4 Fit: Precisely designed to fit the original mounting holes, shape, and size, ensuring a seamless installation and smooth operation. 5Comprehensive Accessories: This kit includes a 28T 410 sprocket and a 410 13T sprocket, ensuring convenient use with all necessary components provided.SpecificationItem Type: Sprocket KitMaterial: Carbon SteelWeight: Approx. 235g / 8.3ozPackage List1 x41028TSprocket1 x 13TSprocket1 x Screw1 x Nut