Well, that makes the anti-helmet case even stronger. If the most dangerous riders from the pool were in the 30% that stopped biking and if the helmets were actu

Well, that makes the anti-helmet case even stronger. If the most dangerous riders from the pool were in the 30% that stopped biking and if the helmets were actually helpful, wouldn't it make sense for the reduction in mortality rate to be bigger than 30% as opposed to the actual 17%?