BikesDirect website says the large frame set is for a person up to 6' tall. Has anyone over 6' tried one of these? I'm 6'4" and currently ride a Xootr Swift. I love the small wheels, plus all the "looks" i get from people. The price of this bike is great, and almost worth a try, but not if there is no way I can fit on it. So any of you other big guys try this one out yet???