Working​ with​ our​ Damper​ rubber​ input​ good​ vibration​ absorption​ between​ chain​ sprocket and​ wheel​ hub.​ The​ size​ and​ dimension​ of​ product​ is​ equal​ to​ OE​ product​ and​ life​ of product​ is​ more​ than​ O.E.