Your helmet is an important bit of your cycling kit and should you fall you want it to protect you. It is therefore vital that it is a quality helmet that meets standard EN1078, and it fits you properly.
Your helmet should have a comfortable, snug fit without being too tight. It should sit level on your head, and the front of the helmet should cover most of your forehead. If the helmet tilts back and exposes your forehead, it’s not going to protect you.
The strap should sit snug beneath your chin – you should barely be able to fit a finger between the strap and your chin. Adjust the side straps so that the point of the V sits just below your ears. If you can move the helmet more than an inch back on your head, tighten the straps in front of your ears; if you can push the helmet forward, adjust the straps behind your ears.