... 16Mn 428-42T/14T motorcycle sprocket thickness 6-7mm market: Asia Indonesia,South America. Motorcycle sprocket descriptionsChain415H, 420, 428, 428H, 520 ... , 34T to 58T etcMain MarketsMid east, south America, Brazil, Africa,eastern Asia, Southeast AsiaTypeStandard or customizedRaw-materialsQ345B(C45#), Q235B(A3#), 16Mn etcHeat ...