Welcome aboard Chris...
I always wonder why one would WANT a bar stool kart [I don't call it racer... that COG is a tripping hazard by design] but sure..
Now, the 160cc is a great option and so is a 500W electric motor,
the latter will be nice and quiet.. but not as fast unlikely as quick and maybe not as long lasting per refill.
but it's still a good pick IMHO... up to you of course
'sid
ThanksWell..
I say fahrende Bierkiste
here's a nice retro-look one
http://www.diygokarts.com/vb/showthread.php?t=32730
american's (lacking proper beer crates for the most part)
make cooler karts instead
it's essentially the same idea as a bar stool kart, just less awkward to look at IMHO
'sid