Tonight I went cruising at 12:30am.  The air was very cool at 60mph.  Loved it.  No helmet.  I wore shorts, which I may never do again.  Ouch!  Those pipes get hot.  There's going to be a scar on my right leg.  Can't explain the freedom of riding without a helmet.  Yes, I know it's dangerous if, and only if, I fall.  That's a chance I'm willing to take.