... thickness:2.42mm Best quality 530H A3 motorcycle chain 1.material:40MN/A32.pitch:15.875mm3. ... case,also can packing as your requirement,can print your own logoMain products as the following: 1.Motorcycle ... , 05MA, 05MB, 05MC, 06MC 2. O-Ring Motorcycle chains: 428SO,520SO,525SO,530SO3. Roller chains: A series ... ,35NP,41NP,40NP,50NP10. Coupling chains The Chain technic treatment is as below:1.Shot peening2 ...