{"product_id":"bell-4forty-mips-adult-mountain-bike-helmet-protective-lightweight","title":"BELL 4Forty MIPS Adult Mountain Bike Helmet - Protective, Lightweight","description":"\u003cp\u003eOur review of the BELL 4Forty MIPS Adult Mountain Bike Helmet finds it best for riders who want a dependable, well-ventilated trail helmet with modern impact protection. The single biggest reason to buy is the integrated \u003cstrong\u003eMIPS\u003c\/strong\u003e slip-plane system combined with Bell's fusion in-mold polycarbonate shell, which together prioritize rotational and linear impact management without adding bulk. Comfortable for long rides, it balances protection and value for most recreational and mixed-terrain mountain bikers.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFusion in-mold polycarbonate shell:\u003c\/strong\u003e The bonded shell and EPS liner create a sturdier helmet that resists separation and improves impact energy distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMIPS-equipped and Float Fit:\u003c\/strong\u003e The integrated Multi-directional Impact Protection System helps reduce rotational forces in angled impacts while the lightweight fit dial allows quick on-the-fly adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo-Twist Tri-Glides:\u003c\/strong\u003e Quick-adjust strap fasteners keep the straps lying flat and properly positioned for a secure fit on varied head shapes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSweat Guide brow pad:\u003c\/strong\u003e Channels moisture away from the brow and eyewear to reduce dripping into goggles or glasses during hot efforts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGoggleGuide adjustable visor system:\u003c\/strong\u003e The adaptable visor accommodates goggles or glasses and can be used with or without the visor attached for flexible eyewear fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe 4Forty MIPS is aimed at adult trail and cross-country riders who want modern safety features and a comfortable, lightweight fit without stepping up to a full-face helmet. It works well for weekend riders, commuters who occasionally hit singletrack, and cyclists who value ventilation and sweat management.\u003c\/p\u003e\n\u003cp\u003eRacers seeking an ultra-aero race helmet or riders requiring a downhill-specific full-face design should look elsewhere; the 4Forty focuses on all-around trail protection and comfort rather than specialized race aerodynamics or full-face impact coverage.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated \u003cstrong\u003eMIPS\u003c\/strong\u003e and Float Fit deliver modern rotational protection with a simple, lightweight adjustment system.\u003c\/li\u003e\n\u003cli\u003eFusion in-mold shell construction gives a reassuring, solid feel and durability aligned with Bell's reputation.\u003c\/li\u003e\n\u003cli\u003eComfort features like the \u003cstrong\u003eSweat Guide\u003c\/strong\u003e and good ventilation keep riders dry and cool on longer rides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot a full-face helmet, so it is not suitable for aggressive downhill disciplines where extra facial protection is required.\u003c\/li\u003e\n\u003cli\u003eVisor and styling prioritize versatility over aerodynamic performance for road race situations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBELL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e4Forty MIPS Adult Mountain Bike Helmet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShell construction\u003c\/td\u003e\n\u003ctd\u003eFusion in-mold polycarbonate bonded to EPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpact protection\u003c\/td\u003e\n\u003ctd\u003eIntegrated MIPS slip-plane with Float Fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit adjustments\u003c\/td\u003e\n\u003ctd\u003eRubber overmolded dial (Float Fit) and no-twist tri-glides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComfort features\u003c\/td\u003e\n\u003ctd\u003eSweat Guide brow pad and ventilation channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisor\u003c\/td\u003e\n\u003ctd\u003eGoggleGuide adjustable visor system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe BELL 4Forty MIPS is a practical, well-constructed mountain bike helmet that delivers modern protection, comfortable fit, and sweat management at a sensible value. Riders who want reliable trail safety with integrated \u003cstrong\u003eMIPS\u003c\/strong\u003e and a lightweight adjustment system will find it a strong choice.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this helmet include MIPS?\u003c\/strong\u003e\u003cbr\u003eThe helmet is equipped with an integrated MIPS slip-plane system designed to reduce rotational forces during certain impacts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the fit easy to adjust on the trail?\u003c\/strong\u003e\u003cbr\u003eYes, the Float Fit dial with rubber overmold and no-twist tri-glides allow quick, simple adjustments while riding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the visor work with goggles?\u003c\/strong\u003e\u003cbr\u003eYes, the GoggleGuide adjustable visor system is designed to accommodate goggles or glasses and can be used with or without the visor.\u003c\/p\u003e","brand":"BELL","offers":[{"title":"Default Title","offer_id":46493861216475,"sku":"B09KL24Y9M","price":65.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/614N6AQ6ZoL._AC_SL1500.jpg?v=1739590274","url":"https:\/\/gearmusthave.com\/products\/bell-4forty-mips-adult-mountain-bike-helmet-protective-lightweight","provider":"GearMustHave","version":"1.0","type":"link"}