How Should A Bike Helmet Fit? Helmet Sizes Explained [With Bike Helmet Size Chart]

No piece of cycling protective equipment is more important than the humble bike helmet.

Most cyclists know very well the importance of quality when it comes to buying a bike helmet – but fewer seem to understand how vital it is to get the right helmet size and fit too.

Do Bike Helmets Expire?

Unfortunately, there’s no quick answer as to whether bike helmets expire due to time alone.

The impact of normal wear and tear means a helmet that’s been used regularly will age very differently from one kept in storage, so there’s plenty more to understand as to when a bike helmet “expires”, and how often you should replace one.

The “Peltzman Effect” In Cycling: Could Helmets Really Encourage Cyclists To Take More Risks?

In February 2022, a London-based bike-taxi service called Pedal Me banned their cyclists from wearing helmets. “People that are taking risks that are sufficient that they feel they need to wear helmets are not welcome to work for us,” tweeted co-founder Ben Knowles. Knowles’ argument has long been debated in psychology as the “Peltzman Effect”. … Read more