{"product_id":"alpinestars-supertech-r7-a-core","title":"Alpinestars Supertech R7 A-Core","description":"\u003cp\u003eThe Alpinestars Supertech R7 A-Core brings Alpinestars's build quality and protection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEngineered for peak performance on both track and road, the lightweight S-R7 Helmet blends cutting-edge carbon composite construction with Alpinestars’ technologies\u003c\/li\u003e\n\u003cli\u003eIts advanced aerodynamics, optimized airflow, and precision-engineered EPS liner ensure superior protection and all-day riding comfort\u003c\/li\u003e\n\u003cli\u003eOuter Shell\u003c\/li\u003e\n\u003cli\u003eFeatures an advanced multi-composite shell construction using pre-preg epoxy resin for maximum strength and performance\u003c\/li\u003e\n\u003cli\u003eIts carbon, aramid fiber, and fiberglass layers deliver lightweight yet ultra-protective performance with excellent energy dissipation, radial strength, and penetration resistance\u003c\/li\u003e\n\u003cli\u003eThe 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\u003c\/li\u003e\n\u003cli\u003eEngineered for exceptional visibility, the S-R7 offers 220° peripheral vision and 57° vertical vision, enhanced by an optimized eye port and head position\u003c\/li\u003e\n\u003cli\u003eInner Shell\u003c\/li\u003e\n\u003cli\u003eThe inner shell features a multi-density EPS liner with seven pieces in six densities, strategically positioned for optimal impact absorption\u003c\/li\u003e\n\u003cli\u003eThe EPS liner is engineered with a dimension specific to each helmet size, matching with the three different outer shell sizes\u003c\/li\u003e\n\u003cli\u003eThe EPS surface is flush and features Alpinestars' coating, developed to deliver proven rotational impact protection\u003c\/li\u003e\n\u003cli\u003eThis low-friction slip plane is designed to mimic the brain’s natural cerebrospinal fluid, the body’s inherent defense against oblique impacts\u003c\/li\u003e\n\u003cli\u003eBy reducing rotational acceleration of the brain within the skull during an impact, this technology helps decrease the risk of concussion and other brain injuries\u003c\/li\u003e\n\u003cli\u003eAerodynamics\u003c\/li\u003e\n\u003cli\u003eThe S-R7 Helmet delivers ultra-low drag and exceptional high-speed stability, reducing neck strain\u003c\/li\u003e\n\u003cli\u003eIts aerodynamically optimized shell features an integrated spoiler developed to minimize turbulence and drag, while lateral winglets further enhance stability and further reduce drag\u003c\/li\u003e\n\u003cli\u003eVentilation\u003c\/li\u003e\n\u003cli\u003eThe 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)\u003c\/li\u003e\n\u003cli\u003eThe incoming air from the chin vents is channeled towards the inner side of the shield, effectively preventing fogging and misting\u003c\/li\u003e\n\u003cli\u003eThe entire top vent section is slidable, allowing riders to reveal three air channels for maximum airflow and cooling performance\u003c\/li\u003e\n\u003cli\u003eChin Bar Extractor Vents are designed to efficiently extract humid air from inside the helmet\u003c\/li\u003e\n\u003cli\u003eShield\u003c\/li\u003e\n\u003cli\u003eThe helmet is fitted with an ECE 22.06 homologated, optical Class 1 shield, with double-sided anti-scratch treatment\u003c\/li\u003e\n\u003cli\u003eShield thickness varies from 1.6 mm on the sides to 2.6 mm in the center\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Alpinestars","offers":[{"title":"Matte Black\/Gray\/Red \/ 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