Buying a motorcycle helmet is not a case where you can just pick a nice design or a well-known brand. Even the most expensive model won't provide proper protection if it doesn't fit well. A helmet that is too loose can shift during a fall, while one that is too tight can quickly turn your ride into torture. That's why the question of how to choose the right helmet size should always come first.
MOTOshop.UA experts recommend approaching helmet selection with the same care as choosing the motorcycle itself. Safety, comfort, and rider concentration directly depend on proper fit.
Why It's Important to Choose the Right Motorcycle Helmet Size
Many beginner riders make the same mistake — they buy a helmet "with room to spare," hoping for extra comfort. In reality, this has the opposite effect. While riding, such a helmet starts to wobble, vibrate at speed, and create extra noise. Most importantly, in an accident, it won't be able to properly distribute the impact.
A helmet that is too small is not an option either. If it presses hard on your temples or forehead, fatigue, headaches, and irritation appear after just 20–30 minutes, which is especially critical on long trips.
Simply put: a properly fitted motorcycle helmet should sit snugly but without painful pressure. It should feel like an extension of your head, not a separate piece of gear.
How to Measure Your Head for Helmet Sizing: Step-by-Step Guide
Before choosing a motorcycle helmet, you need to correctly measure the circumference of your head. You'll need a soft measuring tape.
Measure at the widest part of your head:
- approximately 1–2 cm above the eyebrows;
- across the temples;
- around the back of the head.
The tape should fit snugly but not squeeze the skin.
It's best to take the measurement 2–3 times for accuracy. If the results differ, use the largest value.
Keep in mind that different manufacturers have slightly different fits. Size M from one brand may be narrower, while another brand's M may be wider. That's why a helmet size chart is only a guide, not an absolute rule.
Motorcycle Helmet Size Chart: Centimeters to Sizes (S/M/L/XL)
Most manufacturers use a standard sizing system, but slight variations still occur.
Approximate size chart:
| Helmet size | Head circumference, cm |
|---|---|
| XS | 53–54 |
| S | 55–56 |
| M | 57–58 |
| L | 59–60 |
| XL | 61–62 |
| XXL | 63–64 |
If your measurements fall between two sizes, experts usually recommend trying the smaller one first. Over time, the inner padding will adapt slightly to the shape of your head and become softer.
Pay special attention when choosing motocross helmets. Many riders ask how to choose a helmet for motocross without realizing that this type of gear must fit noticeably tighter due to aggressive riding, jumps, and constant vibration.
How a Helmet Should Fit on Your Head: Fit Check After Trying On
Even if the size matches the chart, the final decision should only be made after trying it on.
A properly fitted helmet should:
- fit snugly around the cheeks;
- not move when you turn your head;
- not create strong pressure points;
- not slide down over your eyes;
- not shift backward when moving.
During the first fitting, the helmet may feel too tight around the cheeks. This is normal for new gear. The inner lining will compress slightly over time.
Always check the fit with the strap fastened. Sometimes a helmet feels comfortable until the chin strap is secured.
As for how a motocross helmet should fit, the fit is usually even tighter. On off-road terrain, the gear is subjected to constant shaking, so any extra play is unacceptable.
Proper Fit Test
After trying on the helmet, perform a simple test. Put on and fasten the helmet, then:
- try rotating it side to side with your hands;
- tilt your head forward and backward;
- gently pull the helmet upward from the back.
If the shell moves independently of your head, the size is too big.
Another important check: the skin on your forehead and cheeks should move slightly together with the helmet. This indicates a secure fit.
It's also recommended to wear the helmet for at least 10–15 minutes. Some pressure points only appear after a while.
Common Mistakes When Choosing a Helmet
One of the most frequent mistakes is buying "by eye" without trying it on. Even if you know your clothing size, it doesn't help you choose a motorcycle helmet correctly.
Riders also often:
- choose a model that is too loose;
- ignore their head shape;
- select a helmet based on design alone;
- buy cheap gear of unknown origin;
- fail to check the chin strap fixation.
Another mistake is trying to "break in" a helmet that is clearly too small. Slight discomfort is acceptable at the beginning, but strong pressure will not disappear even after long use.
If you're unsure which helmet to buy for your motorcycle, focus not only on the brand and appearance, but also on how it actually feels during fitting.
Help with Selection and Consultation
MOTOshop.UA specialists are always ready to help you choose a motorcycle helmet based on your riding style, motorcycle type, experience, and budget. We will advise you on how to select a helmet that provides a high level of safety and comfort even on long trips.
With over 30 years of experience, we understand the real needs of riders — from beginners to professional motorsports athletes.
Browse the MOTOshop.UA catalog or contact our managers — we will help you choose quality gear and find the perfect motorcycle helmet at the best price in Ukraine.
