Find the right bike helmet size - so your helmet is perfect

When you are on the bike, a helmet is essential, we all already know that. But did you know that a poorly fitting helmet cannot protect yourself optimally - or in the worst case -? Therefore, the right size and the perfect stop at a bicycle helmet is the be -all and end -all. But how do you find the right size for your bicycle helmet? How do you adjust your helmet correctly and when is it too tight? We show you how to determine the perfect fit so that you can drive safely and comfortably.

Why the right helmet size is decisive

Choosing the right helmet size is not only a question of comfort, but also your security. A bicycle helmet only fulfills its protective function if it sits properly. A helmet that is too big can slip in the event of a fall and not to protect your head sufficiently. Conversely, a helmet that is too small can press uncomfortably and, in the worst case, prevent you from wearing it. The right size ensures that the helmet sits firmly without being uncomfortable and optimally protects you in the event of an accident.

How do you measure the head circumference for your helmet?

To find the right size for your helmet, you first have to measure your head circumference. For this you need a flexible tape or a cord as well as a ruler. Wrap the tape measure about 2.5 cm above your eyebrows around your head And make sure that it lies at the widest point of your skull. Write down the scope in centimeters. At this point we recommend that you carry out the measurement several times to ensure that you receive a precise result. Make sure that the measuring tape is neither too loose nor too tight; It should be comfortable without causing pressure points.

All of ours Helmets have a closure system, with which you can adjust your helmet. Therefore, when choosing your helmet, you can use a size that is up to one centimeter larger than your dimensions. 

Size tables for bicycle helmets

As soon as you have measured your head circumference, you can determine the right size based on the size tables of the helmets. These tables vary depending on the model. We offer you different sizes for every helmet so that you can find a helmet that fits perfectly on your head. Thanks to our closure system, adjusting the helmet is easy!

We are happy to show you the sizes using an example. In our Pedalon you can choose between three different sizes. 

Head circumference in centimeter	Size
53-56	S
56-59	M
59-63	L

The right size for children's helmets

When choosing a children's helmet, it is particularly important to choose the right size, as children's heads grow quickly. Make sure that the helmet sits well and is not too loose. A false size can not only be uncomfortable, but also endanger your child's security. 

In order to determine the helmet size for children, as explained above, you should measure your child's head circumference and the corresponding size tables of our Children's helmets compare. 

Below you will find a size table for the Children bicycle helmet Meggy II Trend 2024

Head circumference in centimeters	Size
44-49	XS
46-51	S
49-53	S/M
52-58	M

If you are currently still suitable Children's bike accessories addiction, just browse in ours Department of Accessories. 

Adjust your bike helmet 

Since the KED helmets are equipped with a practical closure system, adjusting your helmet is very easy. You can quickly and easily adjust the helmet with the rotary wheel either closer or more relaxed. If you have one of our innovative K star Pure helmets select, you even benefit from K-FIT Adaptation system. This system ensures even faster and precise adjustment of your helmet!

Conclusion: Determine the bicycle helmet size - cozy, firm & safe 

The right helmet size is crucial for your safety and your comfort when cycling. By measuring your head circumference exactly and the size tables of the individual KED models Consider, you can make sure you find the perfect helmet. Your head only deserves the best!