Mine? It's a 410mm.

To Vixtor: That's the smallest size made, and it suitsme quite well. A lot of people give me crap for the stem, but to be honest, it's there because it's the only 31.8mm stem I have, and I only have 31.8mm drops. The current setup is comfortable for both the track and for street riding. Not everyone has a standard fit. No pain, and it rides the way I like it.