Alpinestars 2026 Helmet Range

Alpinestars SM3

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Alpinestars S-M3 helmets bring a peaked, goggle-compatible design to motocross and off-road riding. The name covers adult and dedicated youth versions, which need to be distinguished when choosing a helmet or replacement padding. Begin with the rider's fit and the exact version, then compare graphics and accessories.

Alpinestars S-M3 Solid Youth MX Black — S-M3 Youth Solid: an example of the dedicated youth helmet.

Alpinestars S-M3 Radium Youth MX Yellow / Black / Blue — S-M3 Youth Radium: a graphic example of the same youth family.

Alpinestars SM3 Youth Helmet Crown Pad Grey — S-M3 Youth crown pad: a removable comfort component, not the impact liner.

Adult and youth are different choices

The adult S-M3 and S-M3 Youth use thermoplastic shells and multi-density EPS impact liners, but a youth helmet is shaped and sized for a younger rider. Do not treat a youth size label as equivalent to an adult one. Alpinestars also distinguishes ECE and DOT versions in its youth technical information. Confirm the approval and size chart for the particular helmet, especially when comparing listings from different markets.

Fit a growing rider now

A child's helmet needs to fit securely today, rather than leaving room to grow. Alpinestars permits specific padding changes between Youth Medium and Youth Large, which share an EPS size; Youth Small has a smaller EPS and different adjustment limits. That is a defined component arrangement, not permission to resize any S-M3 with arbitrary pads. Ask for the correct crown and cheek-pad combination and recheck the fit after a change.

Try the helmet with the rest of the kit

The S-M3's ventilation channels and peak support off-road use, while channels in the cheek pads accommodate a hydration tube. Try it with your own goggles and any neck protection: the goggle frame should sit comfortably without forcing the helmet upwards or leaving an awkward gap. Practise fastening the D-rings correctly. The emergency-release cheek pads are a separate feature from the everyday strap fastening.

Match replacement peaks and interiors

Alpinestars designs the peak attachment to release under a specified impact load. Use the intended peak and fixings rather than improvising a stronger attachment. A crown pad is soft comfort padding, not the EPS impact structure. Check adult or youth application, helmet size and the component reference before ordering. Removable parts make routine cleaning and replacement possible, but cosmetic repairs do not establish that a crash-damaged helmet is safe to use.

Check the helmet and fit with Moto Central

Bring your helmet when identifying replacement parts, or visit our showroom with your usual glasses and riding jacket to compare the fit of a complete helmet. We can help separate the helmet, visor and interior choices.

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Alpinestars 2026 Helmet Range

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Alpinestars SM3

Adult and youth are different choices

Fit a growing rider now

Try the helmet with the rest of the kit

Match replacement peaks and interiors

Check the helmet and fit with Moto Central

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Alpinestars 2026 Helmet Range

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Colour

Gender

Category

Collection

Adult and youth are different choices

Fit a growing rider now

Try the helmet with the rest of the kit

Match replacement peaks and interiors

Alpinestars Information

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