... chain wheel 1/1023 or 1045 steel 2/6.5--7mm thickness 3/HRC40-50 hardness 4/ISO9001 certificate Motorcycle sprocket chain wheel ... technical drawing, we can make it for you.6\ main market:indonesia,india,Vietnam,south america, ... 56T etc.front sprocket12T/13T/14T/15T/16T/17T Chain 420,428,428H,520,530MaterialA3# steel(SAE Q235 ... PICTURESPackage: Motorcycle sprocket CG125 /motor bike drive chain wheel set