The other day, an acorn (I think that is what it was) hit the front top of my helmet. The noise was so loud my ears were ringing after the hit. Also, hit a plastic bag that melted to the pipes. And, had to perform an evasive maneuver to keep from hitting a dog that was trying to cross the road. I was doing 65 and wondered what would have happened if I would have hit it. I was on a Road King.