Engineered for MX, Enduro, and off-road riding, the Alpinestars S-M3 Radium MX Helmet combines advanced materials and innovative design to deliver exceptional comfort and protection. Its thermo-injected shell balances impact resistance with lightweight performance, while the multi-density EPS liner and patented rotational impact technology reduce forces on the rider’s head. Enhanced ventilation and a patented visor release system improve usability and safety on demanding trails.
Features:
• Thermo-injected shell with variable thickness for optimal impact protection and lightweight
• Multi-density EPS liner tailored for each helmet size to absorb impact precisely where needed
• Patented rotational impact protection technology to reduce rotational forces
• Patented visor release system to minimise neck injury during impact
• Maximised ventilation with 10 inlets and 7 exhaust ports for effective heat exchange
• Emergency Release System and removable cheek pads for safe helmet removal
• Soft 25 mm chin strap with stainless steel D-rings for secure and comfortable fit
• Integrated hydration tube loops within cheek pads for convenience
• Customisable fit with crown and cheek pads available in different thicknesses
• 6 EPS/EPP inner parts with 5 densities for volume and impact management
• Optimised shell thickness and structure in the chin area for superior impact performance
• Conforms to DOT and ECE 2206 homologation for worldwide use
Features:
• Thermo-injected shell with variable thickness for optimal impact protection and lightweight
• Multi-density EPS liner tailored for each helmet size to absorb impact precisely where needed
• Patented rotational impact protection technology to reduce rotational forces
• Patented visor release system to minimise neck injury during impact
• Maximised ventilation with 10 inlets and 7 exhaust ports for effective heat exchange
• Emergency Release System and removable cheek pads for safe helmet removal
• Soft 25 mm chin strap with stainless steel D-rings for secure and comfortable fit
• Integrated hydration tube loops within cheek pads for convenience
• Customisable fit with crown and cheek pads available in different thicknesses
• 6 EPS/EPP inner parts with 5 densities for volume and impact management
• Optimised shell thickness and structure in the chin area for superior impact performance
• Conforms to DOT and ECE 2206 homologation for worldwide use