80 roller chain A Series 16A-1 1.material:40MN/A3 2.pitch:25.4mm ... 3.plate thickness:3.20mm 80 roller chain A Series 16A-1 1.material:40MN/A32.pitch:25.4mm3.plate ... Motorcycle chains: 428SO,520SO,525SO,530SO3. Roller chains: A series and B series4. Silent chains: SC3,SC4,SC5,SC6,SC8,SC105. PIV ...