Roller Chain 1) Good quality and competitive price 2) Reliable supplier and prompt delivery 3) Long life and anti-fatigue Roller Chain1) Short pitch transmission precision roller chains: standard A and B series2) Motorcycle chains: standard motorcycle transmission chains and engine mechanism chains(timing chains)3) Heavy series roller chains: 40, 50, 60, 80, 100, 120, 140, 160 and 200H4) Roller ...