I can't answer your width question. The best way to choose a new saddle is to try one for a few rides. Specialized and Fizik each have demo programs that cost you $0. I'm trying a Specialized Toupe now in place of the Fizik PaveCX that came on my Felt. So far so good but my butt is so beat up from the Pave that I'm taking a couple of days off to heal and try again this weekend.