If you think those statements lead you to the truth, then I strongly recommend reading this site: http://cyclehelmets.org/ http://cyclehelmets.org/ There's a

If you think those statements lead you to the truth, then I strongly recommend reading this site: http://cyclehelmets.org/ http://cyclehelmets.org/ There's a ton of interesting stuff there, but the various analyses of data from Australia, New Zealand, and other countries' passage of compulsory helmet laws shows a very non-intuitive result. Contrary to "common sense", forcing riders to wear helmets does nothing to reduce head injury rates, controlling for other factors. However, due to the "safety in numbers" effect, Australian riders became much less safe. Ridership dropped dramatically with the introduction of the compulsory helmet laws, which had the effect of increasing per-cyclist injury rates considerably. Thus the well-intentioned legislation did exactly the opposite of its stated aim.