Sitz Bones "parts"

[Flur]

It seems that if your sit bones are 140mm apart you should be fine on a 155. Did you try those already and they didn't work for you? (I couldn't tell from your previous post if you'd tried them or if you had them on order). I don't know why a store would push a 143 for you; that's clearly too small.

Also, when you ride are you in a more upright position, or are you more folded over? I ride more folded over, especially in the drops (my seat is about 3 inches higher than my bars), and I find that I do feel more pressure on the inside of my sit bones, but I know my saddle is wide enough b/c both sit bones are dead on it with space all the way around - I can feel them pretty well and I've checked, numerous times. I had trouble at first and thought that my saddle was too narrow, but I stuck with it and let my pelvic muscles strengthen and now I'm pain free.

[mayanorange]

I agree with these guys- I have 145ish sitbones and need 155-160 in my saddle width.

There's new data out on Bontrager's site and in Medicine & Science in Sports & Exercise that shows we don't actually sit on our sitbones on the saddle as much as is lore. But I still think the whole pelvis width needs support and from where you say you are raw- it's either to narrow or too much curve right to left.

Discussion of the bontrager info here: http://forums.teamestrogen.com/showthread.php?t=25618

[Miranda]

It seems that if your sit bones are 140mm apart you should be fine on a 155. Did you try those already and they didn't work for you? (I couldn't tell from your previous post if you'd tried them or if you had them on order). I don't know why a store would push a 143 for you; that's clearly too small.

Also, when you ride are you in a more upright position, or are you more folded over? I ride more folded over, especially in the drops (my seat is about 3 inches higher than my bars), and I find that I do feel more pressure on the inside of my sit bones, but I know my saddle is wide enough b/c both sit bones are dead on it with space all the way around - I can feel them pretty well and I've checked, numerous times. I had trouble at first and thought that my saddle was too narrow, but I stuck with it and let my pelvic muscles strengthen and now I'm pain free.

Hmm, that is a thought. Maybe I will take one I like the best out of the lot on a further ride in chamois shorts. Yep, these saddles I ordered and rode a mini test marathon around my subdivision today. So, not much distance, but trying to determine "are my sitz bones on this saddle for starters, or not?". My seat and bars are about level. On the hoods, the position is semi-aero I guess, and drops areo. My road bike is a compact version, so slightly more upright. Gosh, what bone part I was on, it's sore tonight. My body must not be even. The left side is normally more sore than the right. Maybe that's a mechanical thing with my pedal stroke to work out with a fitter later.