Originally Posted by mattface

I don't usually post in this sub-forum, but I have no idea where the appropriate place to ask this question would be. So here goes. I ride short distances every day, and longer rides occasionally. Lately when I go on longer rides 20+ miles, my nipples seem to be getting tender. It's not really that problematic, but I wonder what it's about. Has anyone else had this happen? Any idea about what the cause might be?