They might record 'restraint use' for a car occupant but there is no field for helmet use. Certainly nothing in the crash data about clothing.
The cc breakdown was just because that is what I was interested in, so bias was intended. With a couple of Triumph Rockets in there it would have doubled the number of columns required to split everything by 100cc.
One issue shown on this ACC graph is that the actual number of claims isn't that much different between bike sizes, it is just that the average cost per claim goes up with engine size. I don't really get why that is given that if you come off a bike at 100km/h it doesn't really matter what bike you were sitting on a few seconds earlier.
changing-the-classification-of-motorcycles
Bookmarks