Thank you. My bike is the last bike I would expect to see comments on. I love the bike. I am 5'7" or maybe 5'8". The seat height in that picture is well off of what I ride it at now. It is about 2 or 3 inches higher. The 52cm frame should fit riders 5'4" to 5'9" or so if I had to make a guess. Much of this depends on inseam of the person. Mine is still completely stock. The only things I wish I could change right now are the pedals, and a lower gearing.