I am a hair over 6'0" and my track bike is a 56, my road is a 60 and my SS is a 58. I rode a 54 for years and loved how agile it was but I knew that it was too small for me. I gave it to my friend in 2003 and I tried riding it the other day and wow, I am amazed that I ever rode that thing for longer than 10 minutes, let alone 3 years. I was younger then too, so flexibility came into play but, ride a 56 and see how you like it. I bet it works well for you.