Cycle Helmet Sizing Guide
Getting the right fit is essential when choosing a cycle helmet. Whether you’re commuting, hitting the trails, or racing on the road, a properly fitting helmet ensures maximum safety and comfort. At Moto Central, we offer a wide range of cycle helmets for all types of riders — and we’re here to help you find your perfect fit.
How to Measure Your Head for a Cycle Helmet
To find your correct size, you’ll need to measure the circumference of your head:
- Use a soft measuring tape or a piece of string.
- Wrap it around your head approximately 1 inch (2.5 cm) above your eyebrows and ears — this is the widest part of your head.
- Make sure the tape is level all the way around and not twisted.
- Note the measurement in centimetres and refer to the size chart provided for each helmet brand.
Cycle Helmet Fitment Tips
- Snug but Comfortable: Your helmet should feel snug all the way around without pressure points. It shouldn't move when you shake your head.
- Level Position: The helmet should sit level on your head, not tilted back or forward, and low on your forehead — about two finger-widths above your eyebrows.
- Adjust the Retention System: Most helmets have an adjustable dial or cradle at the back. Tighten it until the helmet feels secure without being overly tight.
- Secure the Chin Strap: The straps should form a "V" shape under your ears and allow no more than two fingers between the strap and your chin when fastened.
- Shake Test: Gently shake your head side to side and up and down. The helmet should remain in place without shifting.
Common Sizing Advice
If you’re between sizes, it’s usually best to size down — provided the helmet still feels comfortable — as many models include adjustable fit systems to fine-tune the fit. Some brands and models also offer different shell sizes or internal padding options for an even more tailored feel.
Shop Cycle Helmets at Moto Central
Explore our full selection of cycle helmets, from leading brands across road, MTB, and urban riding. Whether you’re after lightweight performance, maximum ventilation, or all-round protection, Moto Central has the perfect fit for every rider.
Explore cycle helmets at Moto Central and enjoy free UK delivery on orders over £25 and a 365-day return policy for complete satisfaction. Exclusive discounts for Emergency Services, NHS Workers, Armed Forces Personnel, and Students.