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

    • Bell 4Forty MTB Helmet 2019


      34 people are looking at this item.

  • Bell 4Forty MTB Helmet

    Cutting edge protection and impressive comfort combine to make the Bell 4Forty MTB Helmet your go-to option for all your mountain bike trail riding adventures. 

    The 4Forty MTB Helmet features a full hard-shell, the helmet's outer shell is bonded to the EPS foam liner, creating a tough and burly lid that can take the hard knocks of a life lived off-road. It also features generous ventilation with 15 vents keeping your head cool as you take on tough trails and the Sweat Guide design also pulls moisture away from the brow and eyewear, leaving you comfortable even on the warmest of trail days.

    If you do come off the bike you want your helmet to stay in place and to this end, the 4Forty features Bell's Float Fit system lets you dial in the fit perfectly via the rear dial. This is then complemented by the No-Twist Tri-Glides, keeping the helmet straps flat and properly adjusted. Lastly, the adjustable visor accommodates both glasses and goggles, perfect for trail days and enduros.

    Boasting the comfort, protection and broadly capable features of helmets costing twice as much, the 4Forty is a bantamweight, all-conditions, all-kinds-of-trail champion packing a heavyweight value.


    • Fusion In-Mold polycarbonate shell - A process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet
    • Float Fit - A minimalist, lightweight fit system with an easy-to-turn rubber over-moulded dial for adjustments
    • 15 vents
    • GoggleGuide adjustable visor: accommodates both goggles and glasses
    • No-Twist Tri-Glides: Quick-adjust fasteners that help keep straps flat and properly positioned
    • Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear
    • 324 grams (size M)
    • CE EN1078 certified

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


    • Colour: Dark Green
    • Clothing Size: L, M
    • Gender: Unisex
    • Age Group: Adult
  • Save 47%
    RRP £89.99
    £47.49 47.49
    Select Colour
    Dark Green
    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  £166.49
SAVE 12%
RRP £189.99
Select Option

Please select an option

Select Option

Please select an option

From  £182.00
SAVE 30%
RRP £259.99
Select Option

Please select an option

Select Option

Please select an option