I am saving up to buy a Surly LHT. I measured my inseam at 23" and I am 5'1 1/2 then when I was trying to figure out my frame size with http://www.ebicycles.com/bicycle-tools/frame-sizer calculator I noticed that the lowest inseam size is 27". This is the same on any chart I encountered. Why can't I find information below 27"? What frame size would I be? Am I just too child sized to get a respectable adult bike?