Let me be more clear. I am 1 inch taller than you, but have the same inseam. This leads me to beleive that I need a slightly longer top tube that you. The 59 with the 110 stem (and bullhorns) fits me perfectly. You would presumably, unless your arms were longer than mine, need a slightly shorter reach. This could be gotten with a 90mm stem. However, this is not exact science, just a my presumption.