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The Leatt MTB All-Mtn 4.0 helmet seamlessly fuses style with cutting-edge protection, embodying the spirit of alpine adventure.
The Leatt MTB All-Mtn 4.0 helmet seamlessly fuses style with cutting-edge protection, embodying the spirit of alpine adventure.
Leatt

Leatt All Mtn 4.0 MTB Helmet in Peanut

£169.99
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Leatt All Mtn 4.0 MTB Helmet in Peanut

Season:2025

Brand:Leatt

Code:LEHELMTBALLMTN40PEANUT

Discover the pinnacle of mountain biking with the Leatt MTB All-Mtn 4.0 helmet.

This helmet is created for those who venture where the air is thinner and the trails are tougher. Whether you are a traditional mountain biker or an ebiker enthusiast, experience a helmet that seamlessly fuses style with cutting-edge protection, embodying the spirit of alpine adventure. The ultra-stylish design is not just about looks; the helmet houses 360° Turbine Technology, significantly reducing brain acceleration during impacts. Its features include an adjustable visor and sunglasses dock port, making it the perfect companion for high-altitude escapades. Enjoy all-day comfort, mountain-ready durability, and unmatched functionality in one helmet. Dive into the new age of mountain biking with the MTB All-Mtn 4.0.

Renowned for its ventilation and comfort, this enduro MTB helmet has been advanced from the much-loved 4.0 full face helmet. The heart of the Enduro 4.0 is the structurally sound and easy-to-operate removable chin bar design, but its adaptability goes much deeper. A removable mouthpiece in the chin bar increases ventilation or can be installed to protect you when riding in poor weather conditions. A universal sunglasses dock lets you safely dock your sunglasses under the visor when not in use, protected from scratches and unwanted impacts. The adjustable visor extends enough to place your goggles underneath, so you do not have to constantly remove them. This fully ASTM DH certified helmet is the go-to helmet for enduro riders. Uphill or downhill, E-bike or trail, the Leatt 4.0 Enduro helmet has you covered. The full-face design with removable chin bar and an incredibly strong magnesium lock offers outstanding ventilation, and its convenient Fidlock buckle is easy to operate even when your fingers are cramping with arm pump. All Leatt helmets feature 360° Turbine Technology. This design utilizes a network of small discs constructed of a non-Newtonian, energy-absorbing material. Because these Turbines can move 360° (omnidirectional), this technology has two exclusive advantages: namely the reduction of rotational acceleration to the head and brain and the absorption of energy upon impact at concussion level.

Features:

  • Lightweight polymer shell
  • Removable chin bar with new easy-fit attachment system
  • Sunglasses dock port for easy, secure storage
  • Fidlock magnetic closure system
  • 360° Turbine Technology: Reduced peak brain acceleration by up to 30% at impact speeds associated with concussion; Reduces peak brain rotational acceleration by up to 40%
  • Adjustable visor with breakaway function for rotational impact force reduction
  • Maximized ventilation with 18 vents. Optimized for riding and effective even at low speeds
  • Moisture wicking, breathable, anti-odor and washable inner liner
  • In-molded EPS + EP0 impact foam for superior energy absorption
  • Optimal neck brace compatibility
  • Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15
  • Weight: From 430g (0.95 lbs)
  • Sizing: 51-55cm (20-21.6"); 55-59cm (21.6-23.2"); 59-63cm (23.2-24.8")
Sizing Information
Footwear
US6788.599.51010.5111213
UK5.56.57.588.599.51010.51112.5
EU38.54041.5424343.54444.545.54748.5
CM24252626.52727.52828.5293031

Helmets
SIZESML
51 - 55 cm55 - 59 cm59 - 63 cm

Gloves
SIZEXS
EU6/US7
S
EU7/US8
M
EU8/US9
L
EU9/US10
XL
EU10/US11
XXL
EU11/US12
152-178 mm178-203 mm203-229 mm229-254 mm254-279 mm279+ mm

Kneepads
SIZINGJRSMLXLXXL
UPPER30 -34 cm33-37 cm37-41 cm41-47 cm47 - 53 cm53 - 59 cm
LOWER22 - 26cm25-29 cm29-33 cm33-38 cm38-44 cm44 - 51 cm

Elbowpads
SIZEJrSMLXLXXL
19 - 21 cm20 - 24 cm24 - 28 cm28 - 32 cm32 - 36 cm36 - 40 cm

Upperbody Armour suits

SIZE

S

M

L

XL

XXL

160-166 cm

166-172 cm

172-178 cm

178-184cm

184-196 cm

63" - 65"

65" - 68"

68" - 70"

70" - 72.5"

72.5" - 77.2"

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