I just have to ask every time this comes up: How do you all that are 5'7" ride such a tiny bike? I know every person is different, but I'm 5'7" and the 53cm Kilo was too small for me. Do you just keep distances short? Do you have tiny legs and arms?
OP, get sized at a shop, you cannot size your bike based on pictures of seatposts. This is insane.