I don't see much point in an expensive helmet unless it's got some feature that I really like. I'm running a Bell Metro that I bought on sale for $40, and I have another in a box in the basement in case I ever crack this one, and the old Bell Citi that I had before this is still around too. That's probably enough helmets to last me the rest of my life.
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Work: the 8 hours that separates bike rides.