stock frame with a plus 2 round house swinger,
how long should the wheelie bar be?
also should i run a little tire on asphault instead of gokart tire?

what kind of motor are you running ?? on my 10 mill the wheelie bar is the same length as the bike and I run it about 2" from the ground..and you need at least a 6" swing arm unless you are still running a stock motor but in that case you shouldnt even need a wheelie bar

4 mil long rod 396cc stock ported cylinders stock head milled 175 each cylinder runs on 114, shearer inframes ,pods ,33pwk's +4 timing,

ive always been told to build it the same length as your wheelbase. wheel 4.5 inches off the ground (beer can)

thanks for all the info ill get pcs up once im done hopefully by next weekend