Curious about ONE thing. Why do some think that people bike with their head? If it was mandatory-by-law to wear a bike helmet, I'd do that. I always do regardless, of course, as I do when on the motorbike. I *like* my brain. And since I don't pedal with my head, it makes absolutely no difference to my enjoyment of biking. I'm to old to care, frankly, but not too old to be curious.