Dear Sirs,We are Chinese Major Motorcycle Roller Chain factory.We can supply A class Motorcycle Roller Chain, including:Packing including: COLOR BOX & PLASTIC BAG as customer design. Plate thickness is: 1.6mm for 420, 1.7mm for 428. Materil same as Origin Japan.Standard as: Plate is 40Mn steel, Pin is 20CrMnMo, Roller & bushing are 10# steel.Pls contact with our fax no:86-591-87504178Attn:Gong.GengBin Show More