Helmet ALPINESTARS S-M3 Radium gray / black / yellow fluo matte. Designed for peak performance in MX and Enduro, the S-M3 Radium helmet features a lightweight, thermo-injected shell with optimized densities for superior impact protection. Its advanced 17-port ventilation system and low-friction liner reduce rotational forces, ensuring safety and thermal comfort in demanding conditions. It includes a visor with a patented release system and customizable padding for a perfect fit.

MAIN CHARACTERISTICS

• Advanced Thermo-Injected Shell: Constructed with a special blend of polymers of varying thicknesses to achieve the optimal balance between lightness (1430g ECE / 1460g DOT) and maximum impact protection.
• Extreme Ventilation System: Optimized airflow and superior heat transfer through 10 air intakes and seven strategically placed exhaust ports.
• Rotational Acceleration Protection: Incorporates a patented Alpinestars low-friction coating in the EPS liner that acts as a sliding surface to reduce rotational forces in oblique impacts.
• Visor Release System: Patented mechanism designed to release the visor with a predetermined force, significantly reducing stress and the risk of neck injuries to the rider during a fall.
• Internal and external surfaces designed to minimize the effects of oblique impacts.
• Impact Management System with 5 internal EPS pieces of 4 different densities to optimize energy absorption.
• Integrated hydration tube channels in the cheek pads enhance functionality while riding.
• Comfort liner made with recycled materials to reduce carbon footprint.
• Customizable fit system with a crown and interchangeable cheek pads of varying thicknesses, available as genuine replacement parts.
• Optimized chin bar with reinforced shell thickness and structural design that exceeds homologation standards for superior impact performance.
• Internal and external surface design developed to minimize the effects of oblique impacts.
• Emergency release system and removable 3D contoured foam cheek pads for safe helmet removal.
• Soft 25mm textile chin strap for optimal safety and comfort.
• Stainless steel D-ring closure for a precise and secure fit.
• DOT certified and ECE 22.06 approved for global use.

*UNLESS SPECIFIED IN THE DESCRIPTION THAT IT INCLUDES ANOTHER SCREEN (BLACK OR IRIDIUM). THE HELMET IS ALWAYS SOLD WITH TRANSPARENT SCREEN