How to: How to adjust your MTB helmet correctly

You've all seen them and you've probably smiled when you've seen one: bikers with their helmet low on their neck - like a rocket on the launch pad - the straps dangling loosely under their neck, the Y-belts, which should actually be under their ears, hanging uselessly next to the buckle. Of course, a helmet can't provide proper protection like this and, in the worst case scenario, the helmet might even slip off your head completely in the event of a fall.

To ensure that you are properly protected in an emergency and that the helmet fits where it should, we have summarised the most important steps for adjustment in a short guide.

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1 The right size

The helmet must fit the circumference of your head. The best way to measure this is with a tape measure: two fingers wide above the eyebrow and once around the entire head above the ears. Alternatively, you can also use a string - then measure with a ruler.

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2 How the helmet fits correctly

The lower edge of the helmet should again sit about two centimetres above the eyebrows. Position the helmet horizontally, do not push it too far back on the neck or forehead.

3 Width adjustment

The helmet can now be precisely adjusted using the dial at the back of the head. The finer the adjustment, the better the fit. If you move your head, the helmet should not fall off your head, even if the strap is not yet closed.

4 Height adjustment

The height of the neck support can be adjusted on almost all helmets. The lower it is, the better the fit of the helmet. If it is too low, the support can press into the neck - simply try out different positions.

5 Y-distributor

The straps should be loose, about one to two centimetres around the ear, which improves the fit. With some helmets, this position is fixed. Be sure to try it on when buying. If the Y-piece is too low, the helmet can slip off your head.

6 Adjusting the belt length

The strap should be as tight as possible under the chin without being restrictive. Two fingers of space should usually be enough. If the strap is too loose, the helmet can slip down the neck in the event of a fall.