I think this "thing" about riding bikes without helmet comes from back in the days...with gangs like Hells Angels and other rad dudes doing what they could to be on the wrong side of the law, the bikes those bad boys where riding wasn`t exactly speed machines.. but many of them used some kind of KKK look-a-like mouth covers ...now, today i like to think that many of those bikers who choose to ride without helmet is some kind of HA wannabees. Nothing wrong with that..we all have our heroes,
I used to ride bikes some years ago...one of those plastic rocket with more horsepower than weight, i used to go to trackdays once in week...that was brilliant fun, miss that time.