Joined: Jan 2009
Posts: 44,338
Likes: 6,637
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
Yes, it's probably too small, but it's not a sure thing. If the saddle isn't high enough yet, get a longer seatpost, and try it to see how it feels. My ideal size is also a 56 or 57. I have one 54cm bike which, by chance, is totally comfortable for me.