Clone Comet Clutch 30 series, TAV2 COMET NO 219457A DRIVEN UNIT 5/8 BORE 7" DIA 3/16 KEY This unit replaces Comet 30 driver unit, and can be used as a replacement for nearly all go kart and mini bike manufacturers like Yerf Dog Driver Unit Q43201W, Manco, American Sport Works, Kartco, Road Boss, Thunderkart, Clipper, Ken-Bar, TrailsportCarter Brothers, Cushman Scooters, Yerf Dog Go Karts and more ...