So, I finally broke down and bought a nice flat-bar road bike for commuting after years of looking at my worn out mountain bike. I have to say it was worth every penny! I rode 11 miles on the very first ride after basically not riding ever.

So I'm wondering if I should wear a helmet. I'll be riding mostly on bike lanes and slower streets. I always wear a helmet on my motorcycle, but there's a huge severity differential between ~12?mph and 80+mph (yes, my commute is posted 80mph ). I'm not worried about the monetary cost of a helmet, but it feels really good to have wind in my face and hair (long). I've heard that it basically doesn't matter safety-wise, but intuitively I'd imagine it does. It's likely to at *some* point go down. But if you do, will a flimsy bike helmet really be good enough? Should I strap on my full face motorcycle helmet, which kinda ruins the fun of cycling, or go without. Or are bike helmets actually good enough protection?

Internets, impart me wisdom!