Our post on the effects of the NZ cycle helmet law  has had more views than any other so far on www.rdrf.org.uk . Prompted by this, below we: (i)              Give fuller references to the evidence. (ii)             Suggest the reason for the observed changes (particularly the apparent adverse effects on cyclist casualty rates). (iii)              Look at helmet … Continue reading The effects of New Zealand’s cycle helmet law: The evidence and what it means.