Well my dad (yung gunnaz) still has our KX5 running strong. Went to race on sunday and took 1st place. Bike peformed well after we worked a few bugs out in the early rounds. Some other guys in the 500 class were trying to run alcohol but didnt work out well for them, as they were knocked out early. Would like to thank my dad for building such an incredible machine. Like they say "It Aint Fast Without Mixed Gas"