52 versus 54 cm
I'm 5'7" and have a 30" inseam (at least that's my pant's measurement). I got a 52 cm and put it together, and have been riding it for about a week now. I kinda wish I had gotten a 54 cm. I was comparing the bike to my 53 cm KHS flite 100, and the 52cm seemed like it would be a better fit, but overall, I think I would've liked the slightly longer TT on the 54cm. The tires I have on it are the stock ones, 700 x 30, and as I change them up I might feel differently, but so far I'm wishing I had gotten the larger frame....I guess I like to be a little stretched out.