... .pitch:15.875mm 3.plate thickness:2.03mm High Quality 520 Motorcycle Roller Chain 1.material:40MN/A32.pitch:15.875mm3 ... .Motorcycle Chains: 25H (04CH), 415, 415H, 420, 420H, 428, 428H, 520, 520H, 530, 530H, 05MA, 05MB, 05MC, 06MC 2. O-Ring ... ,A5,A66. O-ring chains and xw-chains: 420,428,520,525,530,630 (Racing Chains)7. Leaf chains: LH series8 ...