That's a good idea. There's gotta be something better than polysytrene foam. I'm all for it. There's a lot more data on the dangers of concussions, especially repetitive concussions and a lot more awareness of it around sports which is a good thing. I've rung my bell more than once on a motorcycle but that was back in my motocross days. I can see more of an application for sports helmets where impacts are more common and not as severe.
'12 Street glide... adding miles.