I have a Shoei RF-900 helmet and am looking at headsets.  If you have this setup, what headset are you using?     
I have been looking but the mic's look so huge and I do not have a whole lot of room from my chin to the the chin part of the helmet.   
I can figure out the wife's helmet, it is newer HJC and looks like it is designed for a headset.  And, she has plenty of room at the chin area.