1. Supply motorcycle drive chain 415, 420, 420H, 428, 428H, 520, 520H,etc. 2. ... delivery time 3. OEM service We produce various of motorcycle drive chains of good quality with the most competitive prices, which ... reputations from our clients. 1. 420H motorcycle drive chain's specification: Plate material: 40Mn/A3 Pin material:30CrTi Roller material: 10# Pitch ...