I ride a Road bike, a trek 1000. It is a 58cm. I am 5'8" and my inseam is 34.5 inches. Most people react negatively when I tell them my bike size saying that must be too big for me. but I think it's a good fit. I have been playing with the seat position lately and think that I've made some improvements. I've been riding a lot more lately and feel like my body has adjusted to a more aggressive fit.