... . roller: 10# steel 4. pins:30CrMnTi CT100 motorbike chain 1.Material:#45MN2.Has taken measures to better antirust3.Long ... 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 ... SO,530H-SOProfessional Chain Model:415P,420P,428P,520P,530PSuper Chain Model:415S,420S,428S,520S,530SSpecification: Chain No.Pitch( ...