Helmet MTB AllMtn 4.0

Name: Helmet MTB AllMtn 4.0
Brand: Leatt
SKU: LE1025104241
Price: 169.0 GBP
Availability: InStock

£169.00

Dh-certified protection for the rowdiest trails and e-mtb epics.

Colour

Teal Peanut Stealth

Size

M 55-59cm S 51-55cm L 59-63cm

Free delivery on orders over £40.

30 day returns and exchanges.

Description

The AllMtn 4.0 helmet delivers DH-certified protection in a lightweight, open-face design—giving aggressive trail and e-MTB riders downhill-level impact protection. Built with in-molded EPS + EPO impact foam for enhanced energy absorption, it is certified to ASTM F1952-15 (downhill MTB) and NTA 8776 (e-bikes going up to 45km/h / 28 mph) standards—making it an ideal choice for aggressive rides and e-MTB adventures. Leatt’s 360° Turbine Technology helps reduce rotational forces and absorb low-speed impact energy, while the impact foam provides high-speed impact protection—working together as a 3-in-1 safety system. The modern profile meets the highest safety standards, yet it remains lightweight and breathable, with a moisture-wicking liner to manage sweat. A Fidlock magnetic buckle makes for easy one-handed closure, and the adjustable breakaway visor adds another layer of protection in a crash. With a secure fit system, integrated eyewear dock, and sleek design, the AllMtn 4.0 is built for riders pushing the limits.

Delivery

UK Standard Delivery - £3.95 on all orders under £40
UK Standard Delivery - Free on orders over £40
Express Delivery for order placed before 3pm - £4.95 for all orders

Returns

We want you to love your Leatt gear. If you’re not completely satisfied, you can return your unused items for free within 30 days of receipt!

Items must be in their original condition, with tags attached and in original packaging.

Features

SHELL: Lightweight polymer shell
3-IN-1 SAFETY SYSTEM: When combined with the impact foam, 360° Turbine Technology offers a unique 3-in-1 safety system by protecting against low-speed impacts, high-speed impacts, and rotational forces.
IMPACT FOAM: In-molded EPS + EPO impact foam for superior energy absorption
TURBINES: 360° Turbine Technology
• Rotation protection: The optimally designed turbine discs enable the helmet to move slightly on the head upon impact, helping to reduce peak acceleration to the head & brain.
• Low impact protection: The special energy absorbing material in the turbines absorbs low impact energy associated with concussion.
VENTILATION: 18 vents effective even at low speeds
LINER: Moisture wicking, breathable, anti-odor and washable inner liner
FIT SYSTEM: Flat Lock Strap divider and fit system developed for custom fit, ease, and comfort
CLOSURE: Fidlock magnetic closure system
VISOR: Adjustable visor with breakaway function for rotational impact force reduction
OTHER FEATURES: Sunglasses dock port for easy, secure storage • Soft touch and moisture wicking chin straps • Plastic-free packaging
WEIGHT: From 430g (0.95 lbs)
CERTIFICATIONS: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15, NTA 8776 (Helmets for S-EPAC riders)
CRASH REPLACEMENT: 3-year Leatt Helmet Replacement Program
SIZES:
S: 51–55 cm (20–21 5⁄8 in)
M: 55–59 cm (21 5⁄8–23 ¼ in)
L: 59–63 cm (23 ¼–24 ¾ in)