Bell 4Forty Air MIPS Helmet Matte Blue/Hi Viz

Bell Bell 4Forty Air MIPS Helmet Matte Blue/Hi Viz

Item: BELHE33

MPN: BEH7139341

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Colour: Blue / Hi Viz

Black CamoBlue / Hi VizGrey / RedLight Grey / NimbusWhite / BlackMatte Black
£99.99 (VAT exempt)
RRP £139.99


The 4Forty Air MIPS is equipped with pro-level features yet designed with the privateer in mind.

With a sleek new shell design and 3-position visor, the benefits aren’t just visibly rad but functionally significant for increased air ventilation, effective sweat management, and better goggle compatibility.

Our Float Fit™ system, built-in Sweat Guide™, and anti-microbial Ionic+ padding ensures all-day comfort, while integrated MIPS and extended hard-shell coverage helps you stay committed in all shred conditions.

Upgrades like eyewear ports, a Fidlock® magnetic buckle, and premium straps make the 4Forty Air MIPS your go-to for daily trail riding life.


  • MIPS® (integrated with fit system)
  • 3-Position Adjustable Visor
  • Goggle Gripper
  • Eyewear Ports
  • Fidlock® Magnetic Buckle
  • No-Twist Tri-Glides™
  • Sweat Guide™
  • Ionic+™ Comfort Padding

Fusion In-Mold Polycarbonate Shell

Float Fit™(integrated with MIPS)

360 grams (size M)

S: 52–56 cm
M: 55–59 cm
L: 58–62 cm

CPSC Bicycle*, CE EN1078



We offer free shipping on all orders over £20. Shipping on orders under £20 is charged at £1.95. You should expect to receive your order in 2-3 working days. If your order is urgent you can select a faster or next-day delivery option at the checkout. UK orders are posted with Royal Mail, Hermes or Parcelforce. If you have a specific delivery requirement please contact us and we will do our best to accommodate you. For further information please see our Delivery Information page


If you are not completely satisfied with your goods you may return them within 60 days for a full refund or exchange. All items returned must be in 'as new' condition and be complete with their original packaging. Please make sure the packet is packaged well and do not stick anything directly to the item's packaging which could damage it. For further information please see our Returns Information page

Product Features

  • Colour: Blue
  • Size: M
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