So I recently had a discussion with @gregmerz regarding where I was positioned on my road bike saddle. I was feeling like I wasn't back far enough and couldn't get into a comfortable position. I ended up doing a simple sit bone measurement (you can just sit on some cardboard and pull your legs up (simplified) and measure the gap in your sit bones. There is no correlation between your over all body size and Sit bone gap so if you haven't done this, you should. I measured at 110. so adding 20mm took me to a seat width of about 130. Getting the right saddle is really important. It allows you to get into a comfortable position, it allows you pedal with improved efficiency and handle to bike better as well. So a lesson for beginners and intermediates like myself is to take a look at your saddle. We all focus on the setup of the bike but overlook some of the fundamentals that can make a significant difference. Another factor is the shape of the seat so take a look at that as well.
My OEM Road bike saddle was a 143 (Fizik Aliante) so I swapped out for a narrower saddle (132) FIZIK Arione. Turns out I had already put a similar saddle on my Superfly, Fizik Gobi XM (yeah I really like FIZIK saddles) which is about 132 which I really like.
Edited by Finndog - 7/13/14 at 5:44am