Performance atv quad sprocket 11T~18T 1)Inner hole 14-17 or 17-20 2)For ATV,Dirt bike,Go Kart 3)420 ... ,Honda,Zongshen, Buyan,Polaris,Bashan,Hsun,Shineray,Jinling,kazuma,Lifan,Taotao,Suzuki,chinese,gsmoonFit for following displacement ATV250cc,50cc,110cc,125cc,150cc ... hole 6 teeth 17mm-20mm 15 Tooth 520 20MM Sprocket for ATV Quad Dirt Pit Bike Parts