There a pretty nice quad and there also pretty damm fast. Have you ever heard of the phillip's quad? Thats one that'll spank a 250r. Its basically an aftermarket 250r frame with a 250cc power valved rotax engine in it
id sell my qifes quad and mine for a gas gas wild hp 300..... from what im seing on power and performance.. they should be wackin 250r's and possible banshee's