motorcycle sprocket chain wheel 1/1023 or 1045 steel 2/6.5--7mm ... /HRC40-50 hardness 4/ISO9001 certificate Motorcycle sprocket chain wheel feature:1\high quality steel materials:1045(C45 steel) ... ,NXR150,CBX200,XR/NX200,CBX250TWISTER,XLX250,XR250TORNADO,GRAND,RXK.F1,SUPRA,RC100,GLMAX,SUPRAFITNEW,WIN,NEWTECH,GL100,REVO,GTO, ... PICTURESPackage: Motorcycle sprocket CG125 /motor bike drive chain wheel set