... motorcycle indonesia 1)Competitive price 2)Top quality 3)Quality service 4)ISO9001 certificate high quality sprocket /manufactures of motorcycle indonesia SpecificationsFront ... 420,428,428H,415,520,530MaterialA3 steel45#steelHeat treatmentHigh frequency quenchingCarburizationSurface treatmentSand blastingDull polishGalvanizationChrome platingPaintingElectrophoretic platingPackagingBlister card, Slide ...