When talking about pelvic rotation and it’s influence on saddle choice, the most extreme examples can be found in Time Trial and Triathlon focussed saddles.
Whether the event is a shorter TT, or an Ironman, it is critical that a rider is able to rotate in to a position which is sustainable for the duration of their event.
For this purpose, we see an increasing number of manufacturers bringing to market saddle where the pressure relief is both wide and focused towards the nose of the saddle, allowing the rider to roll their pelvis forward without undue pressure on their perineum and soft tissue.
In this application, width remains critical, albeit in a different ‘zone’ of the saddle itself. Often the nose of these saddles may be wider that a conventional road saddle, but too much can cause excess friction, or worse, over time.
AC Performance Bike Fit 