... .black.blue.yellow 085-1 simplex roller chains 1.material:40MN/A32.pitch:12.700mm3. ... your own logo Main products as the following: 1.Motorcycle Chains: 25H (04CH), 415, 415H, 420, 420H, 428 ... . O-ring chains and xw-chains: 420,428,520,525,530,630 (Racing Chains)7. Leaf chains: LH series8. ... Double pitch conveyor chains with attachments: 2040,2050, ...