... motorcycle chain:1.competitive factory price2.415,420,428,428H,520,5303.material: 40Mn4.heat treated,OEM availablemotorcycle chain 428H 428 ... 420 530 520pitch: 12.7mm 12.7 12.7 15.875 15 ... . High quality motorcycle chain for 420,420H,428,428H,425,520,530