{"product_id":"alpinestarssr7acorehelmetblackgrayredmatt","title":"Alpinestars S R7 A-CORE Helmet - Black \/ Grey \/ Red \/ Matt","description":"\u003cp\u003eEngineered for peak performance on both track and road, the lightweight S-R7 Helmet blends cutting-edge carbon composite construction with Alpinestars’ patented technologies. Its advanced aerodynamics, optimized airflow, and precision-engineered EPS liner ensure superior protection and all-day riding comfort. Multi-composite shell: combines carbon, aramid fiber, and fiberglass with pre-preg epoxy resin to deliver lightweight strength, energy dissipation, radial strength, and penetration resistance. PLASMA inserts: integrated into the collarbone recesses to provide high-performance shock absorption and help reduce injury risk during a slide. Wide field of vision: provides 220° peripheral and 57° vertical vision through an optimized eye port and rider head position for improved awareness on track and road. Size-specific EPS liner: uses seven pieces in six densities, precisely matched to each helmet size and its corresponding outer shell for optimized impact absorption. Low-friction slip plane: Alpinestars’ patented EPS coating helps reduce rotational acceleration during oblique impacts, exceeding the ECE 22.06 Peak Rotational Acceleration standard by 80%. ECE 22.06 and DOT homologated: the S-R7 meets both ECE 22.06 and DOT helmet standards. Optical Class 1 shield: ECE 22.06 homologated shield features double-sided anti-scratch treatment and variable thickness from 1.6 mm at the sides to 2.6 mm at the center. Pinlock® compatible: shield pins accommodate a Pinlock® 120XLT 100% Max Vision lens. Secure shield locking: premium polymer locking lever helps prevent unwanted shield detachment during impacts or crashes and can be secured closed through the frontal metal hook. Tool-less visor release: secure quick-release system allows easy visor removal and replacement without tools. Shield sealing mechanism: side mechanisms allow the shield to rotate and move to seal completely against the helmet’s rubber window trim. A-Head Fitment System: patented micro-adjustable system connected to the EPS liner allows helmet height, depth and fore-aft angle to be tuned to the rider. Emergency Release System: 3D foam cheek pads incorporate ERS for emergency helmet removal.Pre-preg composite construction: carbon, aramid fiber and fiberglass layers are bonded with advanced epoxy resin pre-applied directly to the pre-preg fibers. Aerodynamic shell structure: delivers ultra-low drag, high-speed stability and reduced neck strain. Integrated road spoiler: developed using computer-aided pressure visualization in a full-scale wind tunnel to reduce turbulence and drag. Lateral winglets: integrated into the outer structure to further support high-speed stability and reduce aerodynamic drag. 10-port ventilation system: comprises six intake ports—three in the chinguard and three at the top—and four exhaust ports, with two at the chin bar and two at the rear. Adjustable chin vents: two closable front openings direct airflow toward the inner shield surface to help prevent fogging and misting. Central chin intake: additional closable intake beneath the shield lock directs air toward the inner shield and uses a removable rubber bung. Sliding top vent: movable upper section reveals three internal air channels for increased airflow and cooling. Chin-bar extractor vents: two lateral exhaust ports remove humid air from the helmet interior. Rear extractor vents: two exhaust ports integrated into the rear spoiler support effective hot-air extraction. Removable comfort lining: all linings are removable and washable and feature anti-microbial fabric treatments. 3D cheek pads: fitted foam construction includes eyewear channels, an Emergency Release System and an integrated hydration tube channel. Lightweight construction: size M weighs 1,390 g \/ 3.06 lb.\u003c\/p\u003e","brand":"Alpinestars","offers":[{"title":"XS","offer_id":52082831261991,"sku":"82033261653XS","price":539.99,"currency_code":"GBP","in_stock":false},{"title":"S","offer_id":52082831294759,"sku":"82033261653S","price":539.99,"currency_code":"GBP","in_stock":false},{"title":"M","offer_id":52082831327527,"sku":"82033261653M","price":539.99,"currency_code":"GBP","in_stock":false},{"title":"L","offer_id":52082831360295,"sku":"82033261653L","price":539.99,"currency_code":"GBP","in_stock":false},{"title":"XL","offer_id":52082831393063,"sku":"82033261653XL","price":539.99,"currency_code":"GBP","in_stock":false},{"title":"XXL","offer_id":52082831425831,"sku":"82033261653XXL","price":539.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0855\/6816\/0039\/files\/8203326_1653_S_R7_A_CORE_HELMET_ECE06_FR_8d067089-3fa4-4d08-bb31-242270f82cc4.png?v=1789464633","url":"https:\/\/www.megamotorcyclestore.co.uk\/products\/alpinestarssr7acorehelmetblackgrayredmatt","provider":"Mega Motorcycle Store","version":"1.0","type":"link"}