Well, after 60+ years as a male, and 50+ years as a self-acknowledged cross-dresser, my thinking is that I've invested enough energy as a male that real boobs would interfere... Particularly, I am a member of an athletic club where I swim regularly, and the rest of my time there is spent in spin classes (with tight clothes). I've tried to think about a Halloween instance of spinning in drag, but can't decide which dressing room to use (obviously, come dressed and shower afterwards at home), and can't stand the thought of destroying one of my wigs with the sweat involved. Beside that male and female cycling clothing is not all that different...

Be well,
Lee