... chain,roller chain ANSI 80 /DIN 16A-1 standard roller chain 1.material:40MN/A3 2.pitch:25.4mm 3.plate thickness ... :3.25mmANSI 80 /DIN 16A-1 standard roller chain 1 ... , 428, 428H, 520, 520H, 530, 530H, 05MA, 05MB, 05MC, 06MC 2. O-Ring Motorcycle chains: 428SO,520SO,525SO,530SO3. Roller chains ...