Often cited, sure, but I don't see cyclists (myself included) put a helmet on and start taking on 18-wheelers. What I'm trying to say is it matters how true these studies are. Say we accept there's an increased risk of having an accident, the data also shows that if you have an accident you're much more likely to die without a helmet.

I think a lot of people —including experienced cyclists— would be surprised how easily a silly little fall, a knock against a car, can just kill you.

So even if a helmet makes you marginally more likely to be involved in an accident, being a professional vulnerable road user, all day is no joke. I'd like to have safety equipment when my number comes up.