ya, im still kinda messing with it.. im 6 feet tall, with a 30in inseam, so the 55 is already kinda streaching it.. i ended up taking the 55 over the 53(which is the bike a actually ordered, there was no 55 at the time..) because of tt length and I had no foot overlap on it. I might be stretched out a little bit(a couple inches at the most) but my knees arent hitting my chest or anything. besides that its nothing that a 50-70mm stem and sadel adjustment wont fix..