Based on you measurements, the 58.5 frame is likely closer. Generally, it's much easier to get a size-too-small frame to fit than a size bigger, but it depends on body proportions, flexibility, etc. (One possible issue: is that chart showing "effective" or "actual" top tube length.) I'm 187 cm tall, with a 91 cm inseam, which makes my torso much shorter than normal, compared to inseam. Your measurements seem to be a lot closer to average, so the 58.5 probably won't get you too stretched out . . . assuming you have decent flexibility, no back issues, etc.