... 530H, 05MA, 05MB, 05MC, 06MC 2. O-Ring Motorcycle chains: 428SO,520SO,525SO,530SO3. Roller chains: ... A0,A1,A3,A4,A5,A66. O-ring chains and xw-chains: 420,428,520, ... Year) Total Revenue (%) North America confidential 1.25 South America confidential 0.38 Eastern Europe confidential ... 5 Mid East confidential 1.99 Eastern Asia confidential 1.25 Western Europe confidential 1.25 Central America confidential ...