Leatt MTB AllMtn 4.0 Helmet

63 cm
Delivered between 12.5.2026 and 27.5.2026
free shipping

Colour2

Size2

Product details

When trail riding reaches the next level and you challenge mountains, the mountain will eventually call you, so be prepared!

With a universal sunglasses dock, you can securely attach your sunglasses under the visor when not in use, protecting them from scratches and unwanted impacts. The adjustable visor opens wide enough to place your glasses underneath, so you don’t have to constantly take them off. You will also love the comfort of the Fidlock buckle system.

Leatt helmets feature 360° turbine technology, which reduces both rotational acceleration and impact energy to the head and brain! Don’t hesitate to push your limits. Get ready and prepare for everything that awaits you on the trail.

  • Lightweight polymer shell
  • Docking port for sunglasses for easy and secure storage
  • Fidlock magnetic closure system
  • 360° turbine technology
  • Reduces peak brain acceleration by up to 30% at impact speeds associated with concussions
  • Reduces the maximum rotational acceleration of the brain by up to 40%
  • Adjustable visor with breakaway function to reduce rotational impact force
  • Maximum ventilation with 18 vents. Optimized for riding and effective even at low speeds
  • Moisture-wicking, breathable, odor-resistant, and washable inner lining
  • Molded EPS + EPO impact foam for excellent energy absorption
  • Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15
  • Weight: From 430 g
  • Sizing: S (51-55 cm), M (55-59 cm), L (59-63 cm).

Key specifications

Colour
Yellow
Helmet features
Visor
Head circumference
63 cm
Bike helmet type
MTB helmet
Bike helmet size
L
Item number
64552157

General information

Manufacturer
Leatt
Category
Bike helmets
Manufacturer no.
1026054252
Release date
22.10.2025

Colour

Colour
Yellow
Exact colour description
Yellow

Material

Material
19% Composite, 36% Expanded Polystyrene, 1% Expanded Polypropylene, 28% (Polymide, Polypropylene, Ac

Target group

Target group
MenWomen

Helmet properties

Bike helmet type
MTB helmet
Bike helmet size
L
Head circumference
63 cm
Helmet features
Visor
Air vents
18 x
Helmet fastener
Magnetic closure
Visor type
Removable

Voluntary climate contribution

CO₂-Emission
Climate contribution

Product dimensions

Weight
430 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Bike helmets» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 21.Bell
    0.6 %
  • 21.Bluegrass Bicycle
    0.6 %
  • 21.Leatt
    0.6 %
  • 21.Poc
    0.6 %
  • 21.Sweet Protection
    0.6 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Leatt
    Not enough data
  • 1.Abus
    0 days
  • 1.ALPINA SPORTS
    0 days
  • 1.Frezzo
    0 days
  • 1.Lionelo
    0 days

Return rate

How often is a product of this brand in the «Bike helmets» category returned?

Source: Digitec Galaxus
  • 33.Thousand
    26.6 %
  • 34.TSG
    27.2 %
  • 35.Leatt
    27.3 %
  • 36.Endura
    29.8 %
  • 37.100%
    30.5 %
Source: Digitec Galaxus