Not a rock bouncer but a fully independent suspension crosskart with a motorcycle engine. The issue is, I have front and rear suspension off a CanAm 1000R side by side, Fox shocks, discs, reservoir, hubs and all. It has shaft input on the diff so, I need a streetbike engine with shaft drive. Does anyone know a place to buy a used streetbike engine? I almost bought a whole Goldwing for $650 today but, I'm a cheap ass and still looking.