Performance atv quad sprocket 11T~18T 1)Inner hole 14-17 or 17-20 2)For ATV,Dirt bike,Go Kart 3)420/428/520 ... )Inner hole 14-17 or 17-202)For ATV,Dirt bike,Go Kart3)420/428/520/5304)45# SteelFit for following brand ATVLoncin ... ,gsmoonFit for following displacement ATV250cc,50cc,110cc,125cc,150cc,800cc,350cc,500cc,400ccThe detail items of them as following: T093009 teeth ...