FREE SHIPPING FOR ALL ORDERS OVER $199

Helmet MTB AllMtn 4.0

ULTIMATE ALL-MOUNTAIN HEAD AND BRAIN PROTECTION

SKU: 1024120351
$349.00

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")

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
J
Jack
The Leatt MTB AllMtn 4

The Leatt MTB AllMtn 4.0 helmet is absolutely outstanding! Like all Leatt products, the quality, attention to detail, and performance are second to none. The style and fit are spot-on — secure, comfortable, and confidence-inspiring no matter how rough the ride gets. The ventilation is excellent, keeping me cool even on long climbs, and the coverage offers great protection without feeling bulky.

What really sets this one apart is the brushed aluminium finish — it’s not only unique but adds a real touch of class to the helmet. It’s the perfect blend of safety, style, and sophistication. Once again, Leatt proves why they’re a top choice for riders who want gear that performs as good as it looks.