Fitment : For Surrn Ultra bee/Sur Ron Ultra bee/Surron Ultrabee/Sur Ron Ultrabee Features : Sprocket for Sur Ron Ultra bee has 54 teeth. If you were originally 48 teeth, this will increase the torque of your dirt bike, making it powerful at low speeds and slightly reducing the top speed. 7075 Aerospace Aluminum Alloy: Chain sprocket for Talaria Sting is made of high-quality material, which is harder than regular aluminum and less prone to wear and tear. Lightweight in quality, but with excellent hardness. Attractive Appearance The sprocket for Surron S has undergone anodizing treatment on its surface, with exquisite workmanship and a very beautiful appearance. Specification : Item Weight: 497g. Item Size: 29 X 29 X 1cm. Service: If you have any questions, have time to tell us and we will do our best to answer your questions. Package Includes : 1*Sprocket for Surron Ultra Bee, as pictures. Instruction of Installation is NOT Included.