... .pitch:31.750mm 3.plate thickness:4.00mm A series 100 chain used for Industry 1.material:40MN/A32.pitch:31.750mm3.plate ... -Ring Motorcycle chains: 428SO,520SO,525SO,530SO3. Roller chains: A series and B series4. Silent chains: SC3,SC4,SC5,SC6,SC8,SC105 ... chains: A0,A1,A3,A4,A5,A66. O-ring chains and xw-chains: 420,428,520,525,530,630 (Racing Chains ...