... :45Mn 2. bushing :20CrMnMo 3. roller: 10# steel 4. pins:30CrMnTi CT100 motorbike chain 1.Material:#45MN2.Has taken measures to ... ,428H-O,520H-O,525H-O,530H-OX-Ring Chain Model:428H-X,520H-X,525H-X,530H-XSuper ... O-Ring Chain Model:520-SO,525-SO,530-SO,420H-SO, ... 428S,520S,530SSpecification: Chain No.Pitch(mm)Bush TypeWidth(mm)Pin Dia(mm)Pin Length(mm)Roller Dia(mm)Plate Inner ...