Professional manufacturing,stable characteristics,high reliability High precision parts designed to improve vehicle performance and efficiency. The motorcycle shock-absorbing spring is made of Metal. The surface is smooth and comfortable,high strength,strong tensile strength,high temperature resistance,not easy to damage,corrosion resistance and ensure maximum durability. Mount and dismantle quickly,no drilling or welding is requires. Name:Motorcycle Absorber Material:6063 Aluminum Total Length:390mm(15.35inch) Eye To Eye Center Length:360mm(14.17inch) Eye Diameter:12 mm (0.47 inch) Eye thickness :21 mm (0.83 inch) Spring thickness:8 mm (0.31 inch) Spring Width(approx):62 mm (2.44inch?? Max loading: <;=300kg/pair <;=660lb/pair Package included: 2*Shock Absorber 2*12mm copper rings 2*Adjuster