... /35T/36T/37T/38T/39T40T/41T/42T/43T…...56T etc.front sprocket12T/13T/14T/15T/16T/17T Chain 420,428,428H ... Heat treatmentHigh frequency quenching,heat-treated by mesh belt furnace and carburizingSurface finishingPlate zinc, nickel plate, chromeplate,Sandblasting, Dull polish, Painting ... ,RS100,XRM,DT125,TS125,GP125,XLR,BZLP,HONDA155 SAMPLE PICTURESPackage: Motorcycle front sprocket