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Bell  |  SKU: 39280-067-L

Bell 4Forty Air MIPS Matte White MTB Helmet

£144.99 GBP
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Equipped with pro-level technology but designed with the privateer in mind, the Bell 4Forty Air Mips is the first choice for your next trail helmet.


The Bell 4Forty Air MIPS is engineered for serious trail riders who demand pro-level protection without compromise. Featuring MIPS Evolve® technology, this helmet reduces rotational forces from impacts while maintaining a lightweight, ventilated design that sits closer to your head. Built for all-day comfort, the 4Forty Air delivers with Float Fit™ adjustment, Sweat Guide™ padding, and Ionic+™ interior that manages moisture and odour. The adjustable 3-position visor provides sun protection and seamless goggle integration, while the Fidlock® magnetic buckle makes securing your fit effortless. Practical details matter here: eyewear storage notches, goggle gripper, and premium straps keep your gear organised and in place. Extended hard-shell coverage and no-twist tri-glides ensure you stay protected and comfortable through every descent. Weighing just 360g (size M) and certified to CE EN1078, the 4Forty Air MIPS is your daily trail companion—rad looks backed by serious engineering.
  • MIPS® EVOLVE — Mips Evolve is designed to reduce rotational forces that can result from certain impacts. By integrating the Mips slip plane into the retention system, we are able to reduce complexity and weight for a compact, better ventilated helmet that fits more closely to the head.
  • FLOAT FIT™ — A minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with Mips®).
  • FIDLOCK® MAGNETIC BUCKLE — Fidlock™ is an easy-to-use magnetic buckle. This time-saving feature slides closed laterally for an effortless, secure fit.
  • NO-TWIST TRI-GLIDES™ — Quick-adjust fasteners that help keep straps flat and properly positioned
  • SWEAT GUIDE™ — Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear.
  • IONIC+™ PADDING — Quick-drying interior padding helps manage sweat while fighting odor-causing bacteria.
  • 3-POSITION ADJUSTABLE VISOR — 3-position adjustable visor allows for sun protection and integrates easily with goggles or glasses.
  • GOGGLE GRIPPER — Rubber grip on the back of the helmet keeps your goggle strap in place.
  • EYEWEAR STORAGE — Easily stash your glasses using the integrated helmet notches.

  • CE EN1078
  • 360 gr. (size M)