I'm 6'4" and thinking of getting a 20" for dirt jumping, any suggestions on who makes a frame with a fairly long TT, on normal bikes with a 21" TT I feel way too big. I've given up on running pegs or anything, because my heels hit the rear pegs, mainly I'm looking for something I can do some street, mainly Dirt jumping on. For any of you familiar with Austin, I'm looking to work up to riding stuff like 9th street.