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Re:Bike Share Program Opens in New York City After Long Delay by brnstz on Tuesday May 28, 2013 @09:13AM (#5779754)
Bike helmets are not required for adults.

I usually wear one when biking in Manhattan, but I rode Citibike today and went helmetless.

This is probably statistically whack, but I "feel" safer riding Citibike without the helmet, mostly because I can go a lot faster on my road bike.

Re:Bike Share Program Opens in New York City After Long Delay by muxxa on Tuesday May 28, 2013 @01:01PM (#5781140)
I remember reading about a study (can't dig it up now) that said that drivers drive on average 1 meter closer to cyclists who are wearing helmets vs. those without. Maybe that's why you feel safer.

And some evangelizing against helmet laws: http://www.copenhagenize.com/2008/08/helmets-or-health.html