I've been trying to get as definitive an answer on this one as is possible with a subject so subjective. I think from looking at the S.O. heights and from the heights and inseam reported on the web that the size 46cm would be the right Cross Check for me.
I'm 5'7" tall with an inseam of 29" (in socks). My LBS suggested 54cm Cross Check. I suspect they're way off the mark, but they have put some doubt in my mind.
I really don't mind playing with a range of different stems and bars to fine tune the ride (I'll probably want them for different riding conditions anyway).
If you're a Cross Check rider or know them can you let me know what you think, especially if you're near my height!
Oh yeah, and importantly, red, green or black?