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LEATT 2026 MOTO | RIDE THE FUTURE

Helmet MTB All Mountain 4.0

ULTIMATE ALL-MOUNTAIN HEAD AND BRAIN PROTECTION
SKU: 1024120351
$219.00
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More than 10 in stock

Free shipping on orders over $99.
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Description

Discover the pinnacle of mountain biking. Leatt’s all-new MTB All-MTN 4.0 helmet is created for those who venture where the air is thinner, and the trails are tougher. Whether you're 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. The 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.

  • Lightweight Polymer shell
  • 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
  • Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15
  • Weight: From 430g (0.95 lbs)
  • Sizing
    • #S (51-55cm – 20-21 5⁄8")
    • #M (55-59cm – 21 5⁄8- 23 1⁄4")
    • #L (59-63cm – 23 1⁄4 - 24 3⁄4")
Features

Lightweight Polymer shell

Sunglasses dock port for easy, secure storage

Fidlock magnetic closure system

360° Turbine Technology
Helps reduce peak brain acceleration at impact speeds associated with concussion
Helps reduce peak brain rotational acceleration

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

Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15, NTA 8776 (Helmets for S-EPAC riders)

Weight:
From 430g (0.95 lbs)

Sizing
#S (51-55cm – 20-21 5⁄8") 
#M (55-59cm – 21 5⁄8- 23 1⁄4") 
#L (59-63cm – 23 1⁄4 - 24 3⁄4")

Technical Features

Customer Reviews

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