If they're measuring from the center of the bottom bracket to the center of the top tube where it meets the seat tube, 57mm would just fit you, but with little room to spare. If the measure is 57mm from the bottom bracket center to the top of either the top tube or seat tube, the fit would be better. I stand 5'10" and weigh 163lbs. One of my bikes is a 58mm from bottom bracket center to top of the top tube. It fits ok. I did install a shorter stem.