It just requires a different skill set. I have always wondered when i was riding my ss why it hurt less to get up a climb then on my geared bike. Even when i was riding it back to back on the same climbs. Might be to do with the fact that i am pretty light and i prefer to stand up on climbs rather than seat down which requires more power i am guessing. Interesting. My automatic response has being “woah, you are pretty hardcore riding ss” when it is just different and one setup might suit certain people more than others.