{"product_id":"alpinestars-2027-s-m3-radium-mx-helmet-red-white-blue-yellow-flou","title":"Alpinestars 2027 S-M3 Radium MX Helmet Red White Blue Yellow Flou","description":"\u003cp\u003eThe SM3 is the latest evolution of Alpinestars’ MX helmet, developed for motocross, enduro, and aggressive off-road riding with a focus on lightweight performance and rider comfort.\u003cbr\u003eConstructed with an advanced thermo-injected shell, optimized ventilation, and patented technologies to help manage oblique impacts and reduce neck loads in a crash, it brings premium protection to every ride.\u003cbr\u003eEmergency cheek-pad release, hydration compatibility, and a tunable fit enhance usability on demanding days in the dirt.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHydration tube channels:\u003c\/strong\u003e integrated routing in the cheek pads keeps a drink line neatly in place for easier access on long motos and enduro stages.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEmergency release system:\u003c\/strong\u003e removable cheek pads support faster helmet removal after an incident, helping make post-crash handling more efficient.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTunable interior fit:\u003c\/strong\u003e interchangeable crown and cheek pads in multiple thicknesses let riders fine-tune comfort and stability for a more personalized feel.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOff-road usability:\u003c\/strong\u003e rider-focused interior features are built to support practical, race-day convenience when conditions and stints get demanding.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThe inner and outer surfaces are engineered to minimize the effects of oblique impacts.\u003c\/li\u003e \u003cli\u003eFive EPS inner sections with four densities are integrated to manage impact energy across different impact scenarios.\u003c\/li\u003e \u003cli\u003eThe fit can be tailored to the rider’s head with crown and cheek pads available in different thicknesses, helping maintain secure and stable protective positioning.\u003c\/li\u003e \u003cli\u003eThe SM3 helmet conforms to DOT certification and ECE 2206 homologation.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThermo-injected shell constructed from a special polymer blend with varying shell thicknesses across the structure to keep the build lightweight.\u003c\/li\u003e \u003cli\u003eReinforced chin area with optimized shell thickness and helmet geometry for a more robust front structure.\u003c\/li\u003e \u003cli\u003eMulti-density EPS liner with 5 inner parts and 4 densities, paired with inner and outer surface shaping to form the helmet’s impact-absorbing structure.\u003c\/li\u003e \u003cli\u003eEmergency Release System with removable cheek pads and 3D-contoured foam padding for a modular interior assembly.\u003c\/li\u003e \u003cli\u003eSoft 25 mm textile chin strap with stainless steel D-rings for the retention system.\u003c\/li\u003e \u003cli\u003eApproximate weight: 1430 g (ECE) \/ 1460 g (DOT), size M.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Alpinestars","offers":[{"title":"XS  53-54 cm \/ Red","offer_id":56345594134907,"sku":"8300726-3216-XS","price":189.99,"currency_code":"GBP","in_stock":false},{"title":"S  55-56 cm \/ Red","offer_id":56345594167675,"sku":"8300726-3216-S","price":189.99,"currency_code":"GBP","in_stock":false},{"title":"M  57-58 cm \/ Red","offer_id":56345594200443,"sku":"8300726-3216-M","price":189.99,"currency_code":"GBP","in_stock":false},{"title":"L  59-60 cm \/ Red","offer_id":56345594233211,"sku":"8300726-3216-L","price":189.99,"currency_code":"GBP","in_stock":false},{"title":"XL  61-62 cm \/ Red","offer_id":56345594265979,"sku":"8300726-3216-XL","price":189.99,"currency_code":"GBP","in_stock":false},{"title":"2XL  63-64 cm \/ Red","offer_id":56345594298747,"sku":"8300726-3216-2X","price":189.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0792\/6952\/7850\/files\/88c18ad2-a6fb-41f8-9223-5002c8527c17.jpg?v=1784732308","url":"https:\/\/www.agracing.com\/products\/alpinestars-2027-s-m3-radium-mx-helmet-red-white-blue-yellow-flou","provider":"A G Racing Limited","version":"1.0","type":"link"}