No helmet = Darwin in action. Glad to see "some" people are actually wearing their lids... I know all the arguments, but all you have to see is one person's brainpan shaved open and their gray matter all over the road (been there, seen that) to know a little DOT & Snell is worth a case of helmet hair. Personal choice is the only valid argument, but given the rise in power and performance of modern machines I'm happy to don a helmet to rides such exciting vehicles.