Motorcycle helmets are essential to motorbike riding and are mandatory in the UK, as they offer protection from traumatic head or facial injuries. Every so often, you must change your motorbike helmet due to wear and tear, ensuring you stay fully protected.
Choosing a new motorcycle helmet requires knowing which size you need, as your helmet should be comfortable and snug-fitting. At Bikers World, we explain the importance of wearing a motorcycle helmet and how to measure your helmet size to find the perfect fit.

Table of contents
- How to measure for a motorcycle helmet
- How tight should a motorcycle helmet be?
- When should you replace your motorcycle helmet?
- Why should you wear a motorcycle helmet?
- How long does a motorcycle helmet last?
How to measure for a motorcycle helmet
To measure your head for a motorcycle helmet:
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Measure around your head: Grab a tape measure and stand in front of a mirror or ask someone to help you. Place the tape measure around the widest part of your head, which is typically about an inch above your eyebrows and ears, circling around the back of your head. Ensure the tape measure is level and snug but not too tight, and take note of this measurement.
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Consult a size guide: Compare your head measurement with the helmet size guide provided by the manufacturer. Different brands may have slightly different sizing charts, so using the one specific to the brand you’re considering is essential.
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Choosing Between Sizes: If your head measurement is between two sizes, start by trying the smaller size. A helmet should fit snugly without causing discomfort. If the smaller size feels too tight, then try the next size up.
- Try Helmets On in Person: It is recommended to try helmets on in person for the most accurate fit. A proper fit means the helmet sits comfortably on your head, with the top of the helmet's just above your eyebrows. It should not move around when you shake your head.
How tight should a motorcycle helmet be?
Once you have measured your head size, you should test a helmet in person to ensure it fits correctly. Correctly sized helmets should fit snugly on your head, providing slight pressure but not so much that it feels uncomfortable. Try on a helmet for approximately 10 minutes to see if it feels comfortable.
There are certain tests you can carry out to ensure you find the best-fitting helmet:
- You must size down if your helmet feels loose around your cheeks.
- Try moving your helmet around your head. If your helmet freely moves, you must try on a smaller size.
- Try pushing your helmet in an upward motion from the base of the helmet. If your helmet begins to come off, this indicates that you will need a smaller size.
- Bend your head forward and backwards as far as possible. If the chin guard touches your chest or your helmet touches your back, you should get a smaller size.
- If your helmet feels too tight and uncomfortable around your cheeks and the upper back of your head, you must opt for a bigger size.
Finding the perfect motorcycle helmet size and fit will ensure you stay comfortable during rides without compromising your protection.
When should you replace your motorcycle helmet?
Although the general rule is to replace your helmet every five years, you may need to change it before that timeframe. You should inspect your motorcycle helmet before every ride to ensure everything is in good condition and working properly.
Checking your helmet for any damage or faults is essential if your helmet is older than five years. If you are involved in an accident, it is recommended that you change your helmet straight away. Various signs can indicate when it is time for you to change your motorcycle helmet.
Outer shell
If you notice any dents and damage on the outer shell of your helmet, this indicates that you should change your helmet. If you notice signs of deterioration to the helmet materials from the elements, you should change your helmet as it may not provide sufficient protection.
Inner padding
The inner padding of your motorcycle helmet is often the first thing that will need replacing. Constant exposure to moisture and sweat can cause the glue that holds your pads in place to wear down, leading to the inner pads falling out. You should not ride without inner padding in your helmet, as it will be very uncomfortable and expose you to serious injuries if you crash.
Chin strap
Your helmet's chin strap helps it stay securely in place and ensures you are comfortable when riding. If the strap or buckle of your helmet begins to fray or come apart, this indicates that you should replace your motorcycle helmet.
Helmet fit
Your motorcycle helmet should fit comfortably and securely on your head to ensure maximum protection. If the padding becomes worn and you can move your helmet around easily while it is still on your head, you should find a replacement. Loose motorcycle helmets can lead to a higher risk of injury if you crash.
Regulation changes
All motorcycle helmets must adhere to certain laws and regulations; however, if there is a change in those laws, you may need to change your helmet. Frequently check the regulations regarding motorcycle helmets to ensure your helmet falls within the legal requirements.

Why should you wear a motorcycle helmet?
Wearing a motorcycle helmet is essential when riding on the road, helping protect you against any traumatic head injuries and reducing the risk of death. Motorcycle riders are more exposed than those travelling in cars, so taking the necessary precautions is crucial for ensuring you stay safe.

You must wear a motorcycle helmet that meets British safety standards when riding on the road. The law on motorcycle helmets states that all helmets must meet the following safety requirements:
- British Standard BS 6658:1985 and carry the BSI Kitemark
- UNECE Regulation ECE2206
- A European Economic Area member standard offering at least the same safety and protection as BS 6658:1985 should carry a mark equivalent to the BSI Kitemark
If you ride wearing goggles or a visor, they must also meet certain safety requirements. These standards are as follows:
- Meet a British Standard and display a BSI Kitemark
- Meet a European standard offering at least the same safety and protection as the British Standard and carry a mark equivalent to the BSI Kitemark (UNECE Regulation ECE2206)
Although there is no law requiring the wearing of protective motorcycle clothing, it is highly recommended and could significantly prevent serious injuries should you crash.
Motorcycle helmets’ main purpose is to protect you from serious head injury; however, wearing a helmet has many other benefits.
You should opt for a helmet with a visor or pair of goggles to help protect your eyes from flying debris and bright sunlight. Motorcycle helmets protect you against the weather, whether keeping your head warm in winter or preventing sunburn in hot temperatures.
Bikers World stocks a variety of helmets in vibrant colours and unique designs, which can help you stand out and be more noticeable to other drivers on the road. Adding reflective tape to the front and back of your helmet can help others see you at night.
How long does a motorcycle helmet last?
The general rule of thumb is that you should replace your motorcycle helmet every five years; however, this depends on how often you use your helmet. If you use your helmet occasionally, it may last slightly longer than five years; however, you should frequently check it after the five-year mark for signs of damage.
Other Portable factors, such as sweat and sunlight exposure, can contribute to the degrading of your helmet. Motorcycle helmets that have been cheaply made may wear down within five years. Storing your motorcycle helmet in a dry room can help to prolong its lifespan.

Find the perfect motorcycle helmet for you at Bikers World
When you change your motorcycle helmet, you must know how to measure your head and find the perfect fit. This guide advises when to replace your motorcycle helmet and how to find the perfect replacement. Are you on the lookout for a new motorcycle helmet? Shop the full range of full-face and open-face motorcycle helmets at Bikers World.
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