motorcycle chains 420 1) material:40MN 2) pitch:12.7mm 3) plate thickness: ... (9.525-50.8mm pitches)2)motorcycle chains :415,415H,420,420H,428,428H,520,520H,6303)short pitch conveyor roller ... :2040,2042,2050,2052,2060,2062,2080,2082 and with H series5)agricultural chains:C212A series,ZGS38 combine chain series,3558T ...