Alpinestars S-M3 Radium Helmet, Motocross Off-Road Helmet, Black White and Gray Glossy, featuring an angular aerodynamic design with ventilation ports, side profile view, glossy finish with gray stripes, and a white visor with Alpinestars branding

S-M3 Radium Helmet ECE 22.06

XS / Black White Gray Glossy
€249,95
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Alpinestars S-M3 Radium Helmet, Motocross Off-Road Helmet, Black White and Gray Glossy, featuring an angular aerodynamic design with ventilation ports, side profile view, glossy finish with gray stripes, and a white visor with Alpinestars branding
  • Alpinestars S-M3 Radium Helmet, Motocross Off-Road Helmet, Black White and Gray Glossy, featuring an angular aerodynamic design with ventilation ports, side profile view, glossy finish with gray stripes, and a white visor with Alpinestars branding
  • Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black White and Gray Glossy, front-facing view, featuring an aggressive shell design with a white visor, black chin guard, and mesh-lined ventilation ports.
  • Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black White and Gray Glossy, rear-side view with white visor, featuring bold Alpinestars logo on the side and back, sleek aerodynamic shell with ventilation mesh, designed for off-road motocross and enduro
  • Alpinestars S-M3 Radium Helmet ECE 22.06, Motocross Helmet, Black White Gray Glossy, rear view showing glossy black finish, Alpinestars star logo, ventilation exhaust ports, and ECE certification label.
  • Alpinestars S-M3 Radium Helmet ECE 22.06, side profile view, glossy black and white finish, gray racing stripes, white Alpinestars logo on the side and chin area, ventilated design for motocross and enduro
  • Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black White and Gray Glossy, featuring a white visor with black branding, glossy black shell with prominent white Alpinestars logos and gray graphic accents, aerodynamic design for off-road racing
  • Alpinestars S-M3 Radium Helmet, Motocross Helmet, Black White and Gray Glossy, top-down view showing white visor with black Astar logo and SM3 branding, sleek glossy finish with ventilation ports, high-performance off-road head protection
S-M3 Radium Helmet ECE 22.06
5 | 4 reviews
Double Points

S-M3 Radium Helmet ECE 22.06

motocross helmets

€249,95
Color: Black White Gray 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, the S-M3 Radium Helmet features an advanced thermo-injected shell with varying thicknesses to optimize impact protection and weight. Rigorously tested to exceed ECE 22.06 standards, it utilizes a patented low-friction liner and a multi-density EPS structure to manage rotational acceleration and oblique impacts. This ventilated off-road helmet includes a patented visor release system and integrated hydration tube channels for superior rider comfort.
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 high-impact protection (Weight: 1430g ECE / 1460g DOT).
  • Maximized Ventilation System: Engineered with 10 intake ports and seven exhaust ports to ensure high levels of heat transfer and constant 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 brain-jarring rotational forces during oblique impacts.
  • Patented Visor Release System: Designed to release the visor with a precise, pre-determined force during an impact to significantly reduce stress and potential injury to the rider's neck.
Protection
  • Optimized shell thickness and structure in the chin area for superior impact performance, exceeding standard homologation requirements.
  • Engineered inner and outer surfaces designed to minimize the effects of oblique impacts.
  • Emergency Release System and removable 3D contoured foam cheek pads allow for safe and easy helmet removal by rescue services.
  • 25mm soft textile chin strap provides optimal safety and a secure fit.
  • Stainless steel D-rings for a reliable and tight closure.
  • Fully conforms to ECE 22.06 homologation and DOT certification for global use.
Construction
  • Optimized chin area shell thickness and structure for superior impact performance, exceeding homologation standards.
  • Engineered inner and outer surfaces designed to minimize the effects of oblique impacts.
  • Emergency Release System (ERS) with removable 3D contoured foam cheek pads for safe helmet removal.
  • 25mm soft textile chin strap for secure and comfortable fastening.
  • Stainless steel D-rings ensuring a tight and reliable fit.
  • Certified to ECE 22.06 homologation and DOT standards for global use.
Shipping & Returns
  • Free shipping above 100 €
  • Free 30 day exchanges and returns
Reviews
5 | 4 reviews
SKU 8059347571737 EAN 8300726-1546-XS
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