4Forty MIPS Helmet

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Regular price £52.00 Sale price £89.99



Mountain biking is a demanding sport. Compromises and shortcuts when it comes to gear are never a good idea. The Bell 4Forty MIPS® is built to withstand the rigours of a trail-riding life; with generous ventilation, the comfort of Float Fit and built-in Sweat Guide, extended rear coverage, a full hard-shell, adjustable visor, and the option of integrated MIPS® protection.

Boasting the comfort, protection and capable features of helmets costing twice as much, the 4Forty is an all-conditions, all-kinds of trail champion.

Bell has designed the 4Forty to be an all-day trail luxury, 15 vents provide an excellent cooling over the prow helping reduce sweaty pads, combined with sweat Guide padding means less time wiping salt out of your eyes and more time nailing the trails.

The retention and fit are comprised of Bells Float Fit systems giving 4 rear dial positions transitioning smoothly into the plastic cradle. Integrated into the 4Forty is MIPS® protection, a new modern standard in helmet safety.

MIPS® Protection

MIPS® stands for "Multi-directional Impact Protection System", which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts.

Highlights and Features

  • Float Fit
  • 15 air vents
  • Fusion In-Mold Polycarbonate Shell
  • Goggle guide Adjustable Visor System
  • MIPS® Equipped
  • No-Twist Tri-Glides
  • Sweat Guide Padding
  • Cert: CPSC Bicycle, CE EN1078
  • Weight: 380 grams


BELL Size Guide
Size Head Circumference
Small 52 - 56 cm 18.11 - 22.04"
Medium 55 - 59 cm 18.89 - 22.83"
Large 58 - 62 cm 23.22 - 24.40"
XL 61 - 65 cm 24.01 - 25.19"

If you're unsure of your head circumference you can wrap a measuring tape around your head whilst keeping the tape just above the ears and level front to back to find your measurement or come on down into store for fitting advice.

Delivery & Returns

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FREE Delivery

Our shipping is FREE on orders over £30 with delivery within three working days, alternatively you can upgrade your delivery to DPD Next Day from just £2.95 for next working day delivery.

DPD Next Day is FREE on orders over £150 when being delivered within Mainland UK.

All our deliveries are fully tracked and tracking information will be emailed or messaged to you when your order has left our store.

Stock Availability

Unlike many of our competitors who depend on suppliers having the stock they sell, we only sell products we actually have in stock we're able to ship orders* placed as late as 3pm on weekdays that same day for delivery the following working day when using our DPD services.

*For orders containing bikes, the cut off is 12pm as these take a little longer to prepare for shipping than regular orders do.

Click & Collect

If you are local to our area (Carlisle), you can collect your order from our store at your convenience. Collection is free of charge and you'll be able to collect your order from our store usually within 2hrs on weekdays.

Note that orders for collection need to be paid for in advance and photographic ID is required for collection.

Delivery Pricing
  • Tracked 48
    Delivery typically within three working days
    on orders over £30 otherwise £2.95
    Fully tracked and may require a signature
  • Next Day
    Delivery next working day
    Order before 15:00 for same day shipping
    One hour timed slot on day of delivery
    Packages shipped via DPD
    £2.95 per order
  • Next Day AM
    Delivery next working day before 12
    Order before 15:00 for same day shipping
    One hour timed slot on day of delivery
    Packages shipped via DPD
    £8.95 per order
  • Saturday
    £8.95 per order
    Available until 15:00 on Friday
    One hour timed slot on day of delivery
    Packages shipped via DPD
DPD Deliveries

Our DPD services include 'in-flight' options such as;

  • Specify a safe place at the delivery address for your package to left
  • Nominate a preferred neighbour to receive the package
  • Change the delivery address (local only)
  • Change the date of delivery
  • Upgrade your delivery

Please see our Shipping Policy for further details.

Easy Returns

If an item doesn't fit, or isn't quite what you expected then simply fill out the enclosed returns form and return your unwanted items to us within 28 days for a full refund, we'll accept orders returned to us after this period with refunds made via gift vouchers for use against future orders.

For further information please see our Refund Policy for further details.

Customer Reviews

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