... , BS, JIS 3)offer OEM new model motorcycle sprocket and gear from renqiu DajinCompany Profile 1.MADE BY ... on production quality,and is a good chose for your long time cooperation partner 5.we have ... can meet your much benefitProduct Introduction 1.Motorcycle sprocket type is 420,428,520,530 and so ... is zinc plating ,chrome plating,nickle plating6.Weight for one set is about 0.8kg7.Teeth number arrange ...