It’s hard to argue against the idea that cycling without a helmet is dangerous. After all, tens of thousands of bike riders end up in the hospital every year because of head injuries. And in a small but growing number of cases, these injuries lead to death.
Yet it’s also easy to see that plopping a helmet on your noggin isn’t necessarily enough to protect you. For one thing, a helmet must fit properly. A snug but comfortable fit is essential to its ability to absorb rotational forces that can cause brain injury. And that’s a major challenge. Many helmets don’t offer the kind of customization that makes a difference. And some are simply uncomfortable, with their straps rubbing your ears or bumping into your neck when you turn your head.
And, of course, a helmet won’t do much to prevent a head injury if you fall off your bike. General falls account for a large percentage of traumatic brain injuries and are no less likely to happen when you’re riding a bike than when you’re skiing or walking.
In fact, when a cyclist loses control of his or her bicycle and crashes, it’s usually because of road conditions or the behavior of other road users. Insisting on helmets will have a far smaller impact than investing in safe streets and building a culture that respects the needs of people who choose to bike.