Helmet laws aside, please look at page 16 of this report before talking about how effective helmets are: <a href="http:&#x2F;&#x2F;www.nyc.gov&#x2F;html&#x2F;doh&#x2F;downloads&#x2F;pdf&#x2F;episrv&#x2F;episrv-bike-report.pdf" rel="nofollow">http:&#x2F;&#x2F;www.nyc.gov&#x2F;html&#x2F;doh&#x2F;downloads&#x2F;pdf&#x2F;episrv&#x2F;episrv-bike...</a><p>edit: tl;dr for you obviously, but ~200 people died over 8 years in NYC. Where helmet use was noted in the police report (~ half), 97% of fatal accidents involved people not wearing helmets. Someone else can do the Bayes&#x27; numbers but it&#x27;s pretty obvious. Anyway, I support bike lanes and oppose helmet laws. But I wear a helmet.