Leatt AllMtn 4.0 Helmet
Best premium protection for dedicated trail and enduro riders.
This open-face helmet brings downhill-certified safety to aggressive trail and e-bike riding. It combines dual-density impact foam with rotational force reduction technology to handle both high-speed crashes and low-speed impacts, all while keeping weight low and ventilation high.
$149.00
at
eBay
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Who it's for
- Safety-conscious riders seeking advanced protection against brain injuries
- Mountain bikers who frequently transition between shaded trails and bright light
- Riders prioritizing convenience and quick transitions during their trail sessions
Who should skip it
- Weight-conscious racers looking for the lightest possible gear for climbing
- Cyclists in hot climates who prioritize maximum ventilation over all else
- Budget-focused riders looking for basic protection without the high-end features
Performance breakdown
Impact Protection
Dual-density foam and turbine tech offer elite-level rotational force management.
Ventilation Efficiency
Eighteen vents provide consistent airflow for high-output, demanding trail climbs.
Ease of Use
The Fidlock magnetic buckle makes securing your helmet effortless every time.
Weight Management
Solid construction adds slight heft, but remains comfortable for all-day riding.
Safety Versatility
Downhill-certified protection makes this a true multi-discipline mountain biking powerhouse.
Feature Integration
Thoughtful touches like the eyewear dock significantly improve on-trail convenience.
Key Specs
Weight
430 grams
Number of Vents
18
Helmet Style
All Mountain
Intended Use
Mountain Biking, E-MTB, Downhill
Safety Technology
360° Turbine Technology
Safety Certification
AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15, NTA 8776
Visor Type
Adjustable, Breakaway
Fit System
Flat Lock Strap divider
Shell Material
Polymer
Closure Type
Fidlock magnetic
Know before you buy
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