Originally Posted by berner

I'm the same heigth as you and I ride a bike with a 54cm effective top tube. Most of the time this size is fine, especially about mid summer when I get into my best physical condition after a winter layoff. Often though, I would have preferred a slightly smaller frame, say ETT of 52cm. It works out that if a frame is too big there is no adjustment that will make it fit well and the longer the ride, the more that misfit will become apparent. A frame that is toward the small side had many adjustments possible.

For example, in a too large frame it may not ever be possible to find optimal saddle position which is totally dependent on the bottom bracket. On a frame toward the small side, there are several choices to get the saddle in the best location.