Engineered for peak performance on both track and road, the lightweight S-R7 Helmet blends cutting-edge carbon composite construction with Alpinestars’ technologies Its advanced aerodynamics, optimized airflow, and precision-engineered EPS liner ensure superior protection and all-day riding comfort Outer Shell Features an advanced multi-composite shell construction using pre-preg epoxy resin for maximum strength and performance Its carbon, aramid fiber, and fiberglass layers deliver lightweight yet ultra-protective performance with excellent energy dissipation, radial strength, and penetration resistance The streamlined aerodynamic design includes collarbone recesses on each side, fitted with two PLASMA inserts designed to offer high-performance shock absorption and reduce the risk of injuries during a slide Engineered for exceptional visibility, the S-R7 offers 220° peripheral vision and 57° vertical vision, enhanced by an optimized eye port and head position Inner Shell The inner shell features a multi-density EPS liner with seven pieces in six densities, strategically positioned for optimal impact absorption The EPS liner is engineered with a dimension specific to each helmet size, matching with the three different outer shell sizes The EPS surface is flush and features Alpinestars' coating, developed to deliver proven rotational impact protection This low-friction slip plane is designed to mimic the brain’s natural cerebrospinal fluid — the body’s inherent defense against oblique impacts By reducing rotational acceleration of the brain within the skull during an impact, this technology helps decrease the risk of concussion and other brain injuries Aerodynamics The S-R7 Helmet delivers ultra-low drag and exceptional high-speed stability, reducing neck strain Its aerodynamically optimized shell features an integrated spoiler developed to minimize turbulence and drag, while lateral winglets further enhance stability and further reduce drag Ventilation The S-R7 is optimized for airflow with a total of 10 ventilation ports: 6 intake ports (3 in the chin guard and 3 on the top of the head) regulated by a slidable top vent mechanism, plus 4 exhaust ports (2 lateral ports on the chin bar and 2 at the rear of the helmet) The incoming air from the chin vents is channeled towards the inner side of the shield, effectively preventing fogging and misting The entire top vent section is slidable, allowing riders to reveal three air channels for maximum airflow and cooling performance Chin Bar Extractor Vents are designed to efficiently extract humid air from inside the helmet Shield The helmet is fitted with an ECE 22.06 homologated, optical Class 1 shield, with double-sided anti-scratch treatment Shield thickness varies from 1.6 mm on the sides to 2.6 mm in the center
