... :15.875mm 3.plate thickness:2.42mm Best quality 530H A3 motorcycle chain 1.material:40MN/A32.pitch:15.875mm3.plate ... : SC3,SC4,SC5,SC6,SC8,SC105. PIV chains: A0,A1,A3,A4,A5,A66. O-ring chains and xw-chains: 420 ... ,2060,20809. Nickel-plated chains: 25NP,35NP,41NP,40NP,50NP10. Coupling chains The Chain technic treatment is as below:1.Shot ...