Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black Red Fluo and White Glossy, featuring an aerodynamic design with an angular visor, ventilation ports, and a glossy finish, premium motorsports protection

S-M3 Radium Helmet ECE 22.06

XS / Black Red Fluo White Glossy
2,995.00 kr
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Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black Red Fluo and White Glossy, featuring an aerodynamic design with an angular visor, ventilation ports, and a glossy finish, premium motorsports protection
  • Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black Red Fluo and White Glossy, featuring an aerodynamic design with an angular visor, ventilation ports, and a glossy finish, premium motorsports protection
  • Alpinestars S-M3 Radium Helmet ECE 22.06, Motocross Helmet, Glossy Black with Fluorescent Red and White accents, front-facing view showing the aerodynamic shell, integrated visor, and protective chin bar with bold Alpinestars branding.
  • Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black Red Fluo and White Glossy, rear three-quarter view showing sleek aerodynamic design, white branding and bright red visor, high-performance off-road protective headwear
  • Alpinestars S-M3 Radium Helmet ECE 22.06, Motocross Helmet, Glossy Black with Red Fluo and White accents, rear view displaying the aerodynamic shell design, white star logo, and certification labels.
  • Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black Red Fluo and White Glossy, side profile view, featuring large white Alpinestars branding and star logo, red fluo peak and chin bar accents, glossy finish, engineered for MX and Enduro off-road riding.
  • Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black Red Fluo and White Glossy, high-gloss finish with bold white Alpinestars branding and star logo, featuring a bright red visor peak and chin vent, engineered for off-road protection.
  • Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black Red Fluo and White Glossy, top view featuring the red fluo visor with white Alpinestars branding and sleek aerodynamic design.
S-M3 Radium Helmet ECE 22.06
5 | 4 reviews
Double Points

S-M3 Radium Helmet ECE 22.06

motocross helmets

2,995.00 kr
Color: Black Red Fluo White Glossy
S-M3 Radium Helmet ECE 22.06 S-M3 Radium Helmet ECE 22.06 S-M3 Radium Helmet ECE 22.06

Size

Size guide
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Description

Expertly designed for MX and Enduro riding, the S-M3 Radium is a lightweight off-road helmet engineered for optimized impact protection and rider comfort. Featuring a thermo-injected shell with a patented low-friction coating and a multi-density EPS liner, it effectively manages rotational acceleration and oblique impact forces. The helmet includes a patented visor release system, integrated hydration tube channels, and an emergency release system for maximum safety.
Key Features
  • Advanced Shell Construction: Features a thermo-injected shell with a specialized polymer blend and engineered thickness to provide the optimal balance of lightweight performance and impact protection (1430g ECE / 1460g DOT).
  • Maximized Ventilation: Equipped with 10 intake and seven exhaust ports to ensure high levels of heat transfer and airflow during intense riding.
  • Rotational Acceleration Force Protection: Utilizes a patented low-friction coating on the inner EPS liner that acts as a slip plane to reduce rotational forces during oblique impacts, mimicking the brain's natural defenses.
  • Patented Visor Release: Designed to release the visor with a pre-determined force during an impact, effectively reducing stress and potential injury to the rider's neck.
Protection
  • Engineered to meet Alpinestars' rigorous in-house standards for chin bar impact performance, exceeding basic homologation requirements.
  • Optimized shell thickness and structure specifically designed for superior impact protection in the chin area.
  • Engineered inner and outer surfaces designed to minimize the physical effects of oblique impacts.
  • Equipped with an Emergency Release System and removable 3D contoured foam cheek pads for safe and easy helmet removal by trackside medical staff.
  • Features a 25mm soft textile chin strap for maximum security and rider comfort.
  • Stainless steel D-rings ensure a consistent, tight, and secure fitment.
  • Fully certified to ECE 22.06 homologation and DOT standards for global use.
Construction
  • Shell thickness and structure optimized in the chin area for superior impact performance, exceeding Alpinestars' internal testing standards.
  • Inner and outer surfaces engineered to minimize the effects of oblique impacts.
  • Equipped with an Emergency Release System and removable 3D contoured foam cheek pads for safe helmet removal.
  • Soft textile 25mm chin strap for optimal safety and rider comfort.
  • Stainless steel D-rings for a tight and secure fit.
  • Conforms to DOT certification and ECE 22.06 homologation for worldwide use.
Shipping & Returns
  • Free shipping above 1000 kr.
  • Free 30 day exchanges and returns
Reviews
5 | 4 reviews
SKU 8059347571799 EAN 8300726-1553-XS
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