Did you know that you could shop on our www.chainreactioncycles.com/us/en website?

    • Bell 4Forty Helmet (MIPS)

  • Bell 4Forty Helmet (MIPS)

    Heavyweight technology without putting the piggy bank at risk. The 4Forty Helmet (MIPS) from Bell rivals some of the high-end helmets at a fraction of the cost, punching above its weight to deliver incredible protection and safety on the trail.

    License To Thrill

    Ready and waiting to kick up roost, the 4Forty Helmet is the ideal lid for pinning berms and flying into kickers. Not satisfied at just taking in the views, this safety-conscious helmet sports a Fusion In-Mould Polycarbonate Shell to absorb head impacts, should you ever suffer an unexpected fall that is. Ideal for shredding all forms of terrain, the 4Forty utilises extended rear coverage and an adjustable visor system to protect your eyes.

    MIPS (Multi-directional Impact Protection System)

    Made to meet and exceed international standards, Bell also turn to MIPS to add an extra layer of head protection to their 4Forty Air.

    The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.

    Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.

    Cool and Comfortable

    Making sure performance isn’t compromised when the intensity of your ride heats up, the high-end breathability of the 4Forty ensures you stay cool and dry from the first pedal until the last. Fitted with built-in sweat guides and 15 individual vents, airflow is maximised around the head to fend off sweat while the lightweight feel of this Bell lid improves comfort.  Thanks to the Fusion in-mould polycarbonate shell and sweat guide padding, you’ll find taking off the 4Forty MIPS Helmet a harder decision than whether or not to tackle that all-important booter.


    • Float Fit™
    • Fusion In-Mould Polycarbonate Shell
    • MIPS (Multi-directional Impact Protection System)
    • Goggleguide™ Adjustable Visor System
    • No-Twist Tri-Glides™
    • Sweat Guide™ Padding
    • WEIGHT: 380 Grams
    • VENTS: 15
    • MIPSShop all MIPS helmets - Click here

    Buy Bell from Chain Reaction Cycles, the World’s Largest Online Bike Store.


    • Colour: Matte Gloss Black 20, Slate-Orange MY19, Matte-Gloss Black, Black Camo 20
    • Clothing Size: M, S, L, XL
    • Gender: Unisex
    • Age Group: Adult



  • Save Up To 45%
    RRP £109.99
    £60.49 - £76.99 60.49 76.99
    Select Colour
    Black Camo 20
    Matte Gloss Black 20
    Matte-Gloss Black
    Slate-Orange MY19
    Size Chart Select Clothing Size
    Email me when in stock

    Order in the next


    and choose Next Day Delivery at the checkout

  • Need help? Have a question?

    Get in contact with us

    Helmets Buying Guide

    We’ve got everything you need to know in our buying guide...

  • Also Consider

    From  £254.99
    SAVE 15%
    RRP £299.99
    Select Option

    Please select an option

    From  £244.00
    SAVE 24%
    RRP £319.99
    Select Option

    Please select an option

    From  £197.99
    SAVE 10%
    RRP £219.99
    Select Option

    Please select an option

    From  £178.50
    SAVE 15%
    RRP £210.00
    Select Option

    Please select an option