Centrifugal clutch specs

We currently do a range of clutches both to fit 3/4" 'Q' shafts and 20mm metric '"Q' shafts Please call if in doubt we do currently 219 pitch 15,16 &20 teeth. 1/2" pitch 10 teeth,90mm v pulleys and 3/8" pitch 12 teeth. They will handle up to 8hp and are ideal for go-karts. they begin to engage at approximately 1800rpm and are fully locked at 2000rpm . they use 3 sintered metal shoes to provide the drive .