[3/4″ Centrifugal Clutch]: Go kart clutch 3/4 inch bore, 12 tooth for #35 Chain, designed for 6.5HP engines, fits for go kart, Mini Bike [3/4″ Centrifugal Clutch]: Go kart clutch 3/4 inch bore, 12 tooth for #35 Chain, designed for 6.5HP engines, fits for go kart, Mini Bike [Widely Application]: This 12 tooth chain screw set is widely used for centrifical engines 6.5HP with 3/4″ shaft and any other go cart motor auto engines with 3/4 crank shaft [Strong and Durable]: Made of high qualityiron plate, powder metallurgy material, the go kart clutch is lightweight, sturdy, durable, wear-resisting, fast heat disation, stronger and features maximum torsion [Easy Installation]: Package included: 1 centrifugal clutch, 1 master link, 2 Screws; The centrifugal clutch for go kart is easy to install and remove without tools, easy to operate within minutes [Aftermarket Replacement Part]: Replaceable OE number for reference: PBH540687, a perfect replacement part for your mini bi