For your height, according to Wabi's size chart, a 58cm would be appropriate. That being said, I'm sure taller Wabi owners can offer their input on what size might fit you best (though bike fitting is very personal). I'm just under 5'2" so I won't be of much help . . .

If you do decide to go the route of Wabi, the folks who work there are extremely helpful and responsive. The bikes are quite nice.