Quote Originally Posted by Swan View Post
5'7 on an XS?! Wow! Maybe I should reconsider wanting to buy this same bike!

I have no clue how to help you with this sort of thing... wish I could... I would say you should try to sit on one in person, but I don't know any stores that keep it stocked Stateswise. I hope others can help you with this. Good luck, and I'm excited for your purchase!
How tall are you? Cyclocross bikes in general tend to run big (bottom bracket is up higher), so while it's probably the equivalent of a 46cm bike, it's got the measurements of a 48 or 49 cm frame otherwise. I'm also short-torsoed.
Let's just say I can get my hands easily on an extra-small (coworker has one), but a small is harder to come by. I have tried their road bike in a size small (same TT and seat tube angle measurements, IIRC) and it could work with a shorter stem, but I'd be more comfortable on their XS, probably.