Originally Posted by Jrasero

As a short king and OP being 5'7", SOH probably will start to make a difference in which size they take. A 52cm 746mm SOH a 54cm 768 SOH. That .86" of a difference for shorter riders like us might be one of the determining factors.
At 5'5" Specialized puts me on a 52cm but the 746mm/29.37" SOH is above my 29" SOH clearance. Also while a 52cm would work reach wise for me at 377mm that's really at the upper range for me, thus even if SOH was not an issue it would come down to running a smaller frame with a larger stem which IMO looks more pro and contributes to more stable steering, or running a slightly larger frame with a smaller stem which IMO doesn't look as pro and can be more twitchy