1.motorcycle sprocket 2.suit for Yamaha, Honda,Suzuki,Kawas 3.heatment treatment 4.durable 5.factory outlets Main information of our motorcycle sprocket, as follows:Specifications:Rear sprocket: 34T/35T/36T/37T/38T/39T/40T/41T/42T/43T/44T/45T/ 46T/47T/48T/49T/50T/51T/52T/53T/54T/55T/56T.etcFront sprocket: 13T/14T/15T/16T/17T.etc415,420,428,428H,520.etcRaw-materialsSAE 1045, 16MN, A3 steelHeat ...