Quote Originally Posted by Lucygoosie View Post
In this diagram from Wikipedia, the painful area would be the lowest area of the 4 where the pubic bone meets the ischium. http://upload.wikimedia.org/wikipedi...lvis-pubis.jpg



I will ask if I can bring my own saddle but I suspect the answer will be no.
I think you've discovered a big part of your answer - sounds like the seat's too narrow!
I prefer my saddles to be at least 2cm wider than my sit bones, so it has a chance to actually support them.

I wonder if you offered to leave a wider seat on "your" spin bike they might permit it? That way you wouldn't be loosening and tightening the bolts every time, which I could imagine might be a reason they might initially be inclined to say no...?