... & forged High frequency quenching,Carburization Sandblasting,Galvanized,Cr-plating Name:415 motorcycle sprocket 1) Material:45# steel,16 # Mn,A3 steel2 ... ) Specification:415,420,428,428H,520..etc3) Front gear:13T,14T,15T ... price.Expecting your contact and visit us for more information! 415 motorcycle sprocket