roller chain,roller chain,roller chain,roller chain,roller chain,roller chain,roller chain,roller chain,roller chain ANSI 80 /DIN 16A-1 standard roller chain 1.material:40MN/A3 2.pitch ... :3.25mmANSI 80 /DIN 16A-1 standard roller chain 1.material:40MN/A32.pitch:25.4mm3.plate ... Ring Motorcycle chains: 428SO,520SO,525SO,530SO3. Roller chains: A series and B series4. Silent chains: SC3,SC4,SC5,SC6, ...