... .Materials: carbon steel, stainless steel 2.Colors:blue,black motorcycle chain Specification: 1. Simplex: 04B-1, 05B-1, 06B-1, ... -3, 40B-3, 48B-3, 56B-3, 64B-3 428 Motorcycle Chain Pitch:12.70mmRoller diameter:8.51mmWidth between inner plates ...