moosun minibike go kart clutch 3/4" bore 10 tooth with #40/41/420 chain moosun <b>centrifugal clutch designed to be used on one wheel karts with rear tires no larger than 15" tall, and engines 2hp-7hp. <br> larger tires and live axles recommend using torque-converter ( asin:b07t1krs4v)</b><p><b>specifications:</b><br> clutch bore: 3/4"<br> sprocket: 10 teeth for #40/41/420 chian<br> clutch dia: 107mm<br> clutch height: 55mm<br> engagement speed: 2300±300 rpm<br> recommended engine: 2hp - 7hp, 3/4" shaft with flat key<br> <b><br> fitment:</b><br> 2 - 6.5hp honda & honda cloned engines gc160, gc190, gx120, gx140, gx160, gx200<br> perfect for go kart minibike baja mini bike mb165 & mb200 (baja heat, mini baja, baja warrior)<br> common clutch for 3.5-7hp engines using #40/41/420 chain<br> briggs & stratton and 2 - 6.5 hp with 3/4" shaft<br> tecumseh engines 2 - 6.5 hp with 3/4" shaft<br> <b><br> this kit includes:</b><br> 1x 10 teeth #40/41/420 chain centrifugal clutch<br> 1x #40/41/420 chain<br> <br> <b>set screws not included. mounts onto crankshaft using bolt and washer on the end of the crankshaft.</b><br> (clutch does not need set screws as long as the end of the crankshaft is threaded to accept a bolt. most go kart clutches are held onto the shaft with a bolt and larger washer. extra washers if needed are used on the crankshaft to space clutch.)</p>