Exactly, as I posted, riskier forms of riding.As a bald statistic, that could mean riders indulging in behaviour more likely to cause a head injury are more likely to wear helmets.
Could be fast road riding, MTB off-road or just taking risks due to the nature of the rider.
As also posted, utility riders are less likely to wear helmets but rarely suffer head injuries, no doubt due to riding more moderately.
It's back to my old argument that we largely control whether we have accidents or not.
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