The AllMtn 4.0 helmet delivers DH-certified protection in a lightweight, open-face design, offering downhill-level fall protection for aggressive trail and e-MTB riders.
Made with injected EPS + EPO impact foam for increased energy absorption, it is certified to ASTM F1952-15 (downhill MTB) and NTA 8776 (e-bikes up to 45 km/h), making it an ideal choice for aggressive rides and e-MTB adventures.
Leatt's 360° Turbine technology helps reduce rotational forces and absorb energy in low-speed impacts, while the impact foam provides protection in high-speed impacts - together they work as a 3-in-1 safety system.
The modern profile meets the highest safety standards, while being lightweight and breathable, with a moisture-wicking lining for sweat control. The Fidlock magnetic buckle allows for easy one-handed fastening, and the adjustable, removable visor adds an extra layer of protection in the event of a fall.
With a secure fit system, integrated goggle storage, and sleek design, the AllMtn 4.0 is built for riders who push the boundaries.
CONSTRUCTION:
• Lightweight polymer shell
3-IN-1 SECURITY SYSTEM:
• Combined with impact foam, 360° Turbine technology provides a unique 3-in-1 safety system that protects against low-speed impacts, high-speed impacts and rotational forces.
IMPACT FOAM:
• Injected EPS + EPO foam for excellent energy absorption
PROTECTION:
• 360° Turbine Technology
• Anti-rotation protection: Optimally designed turbine discs allow the helmet to move slightly on the head during impact, reducing peak acceleration to the head and brain.
• Low-impact protection: Special energy-absorbing material in the turbines absorbs the low-impact energy associated with concussions.
VENTILATION:
• 18 ventilation holes effective even at low speeds
LINING:
• Breathable, moisture-wicking, anti-odor and washable inner lining
FIT SYSTEM:
• Flat Lock Strap divider and fit system developed for individual adjustment, comfort and ease of use
SWITCHING ON:
• Fidlock magnetic closure
SIGN:
• Adjustable visor with tear-off function to reduce rotational forces upon impact
OTHER FEATURES:
• Port for secure storage of glasses
• Soft, breathable and moisture-wicking chin straps
• Plastic-free packaging
WEIGHT:
• From 430 g
CERTIFICATIONS:
• AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15, NTA 8776 (S-EPAC rider helmets)
FALL REPLACEMENT:
• 3-year Leatt helmet exchange program
SIZES:
S: 51–55 cm
M: 55–59 cm
L: 59–63 cm
Product ID: 30731
About the brand LEATT
With an ever evolving range of helmets, body armor, braces, guards, hydration systems, apparel – whatever it takes to keep the committed Thrill seeker safer. Yours is a confidence game. And we’re in the business of making sure that you have the confidence and the equipment to push yourself faster, harder and further than you thought you could go.Leatt prilba



