I am a big fan of the Bell Metro. Or the somewhat cheaper Citi. They sell for cheap sometimes through Nashbar or Performance.
It is a nerdy looking helmet though.
jim
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Cross Check Nexus7, IRO Mark V, Trek 620 Nexus7, Karate Monkey half fat, IRO Model 19 fixed, Amp Research B3, Surly 1x1 half fat fixed, and more...
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SB forever