... 2.competitive price 3.standard breaking load motorcycle chain specifications:25H,420,428,428H,520,530,O- ... NO.428/428HMaterial40MnPitch12.70mmColorNatural, blue ,Black, chrome , goldStructureRoller Chain PackingInner: ploybag+color boxSpecial packing according to requirement.Main ... with experienced technology,2.Have reasonable price and good chain quality.3.Long life duration high strength.4. ...