Leatt MTB Enduro 4.0 V23 Stealth Bicycle Helmets

A downhill-certified convertible full-face mountain bike helmet with a removable chin bar, designed for enduro riders who need maximum protection on descents and the flexibility of an open-face helmet for climbs.

At a Glance

Protection: ASTM F1952 downhill-certified with 360° Turbine Technology and dual-density EPS + EPO impact foam
Helmet Type: Convertible full-face with removable chin bar
Best For: Enduro, Downhill, Trail Riding, Bike Parks, and E-MTB
Ventilation: 18 vents designed to provide airflow even at low climbing speeds
Closure: Fidlock magnetic buckle for quick, secure fastening
Compatibility: Optimized for Leatt neck braces and features an integrated sunglasses dock

Best For

Enduro racers who need downhill-certified protection with climbing versatility.
Mountain bikers riding aggressive technical trails and bike parks.
E-MTB riders looking for additional certified protection.
Riders who want one helmet that converts between full-face and open-face configurations.
Trail riders who prioritize ventilation, comfort, and all-day adaptability.

Before You Buy

Designed primarily for mountain biking, including enduro, downhill, trail, and e-bike riding.
The removable chin bar allows quick conversion between full-face and open-face modes.
Certified to ASTM F1952 for downhill mountain biking and NTA 8776 for e-bike use.
Includes a Fidlock magnetic buckle for fast one-handed operation.
Compatible with Leatt neck braces.
Plastic-free packaging.

What This Product Does

The Leatt Enduro 4.0 is engineered to give riders downhill-level protection while maintaining the versatility required for long enduro rides. Its lightweight polycarbonate shell combines with dual-density EPS and EPO impact foam to help absorb impacts across a wide range of riding conditions.

Leatt's 360° Turbine Technology works alongside the impact foam to help reduce both rotational forces and low-speed impact energy, creating a comprehensive protection system without compromising comfort.

For climbs and less demanding sections of trail, the removable chin bar allows the helmet to quickly convert into an open-face configuration. Eighteen large vents promote airflow even at slower climbing speeds, while the moisture-wicking liner, Fidlock magnetic closure, adjustable breakaway visor, and integrated sunglasses dock enhance comfort and convenience throughout every ride.

Benefits

Convertible design functions as both a full-face and open-face helmet.
Downhill-certified protection for aggressive riding and racing.
NTA 8776 certification makes it suitable for many e-MTB riders.
360° Turbine Technology helps reduce rotational and low-speed impact forces.
Dual-density EPS and EPO foam improve energy absorption during impacts.
18 ventilation ports help keep riders cool during climbs and descents.
Removable chin bar installs and removes quickly without compromising fit.
Fidlock magnetic buckle allows fast one-handed operation, even while wearing gloves.
Integrated sunglasses dock securely stores eyewear when not in use.
Moisture-wicking, washable liner helps keep the helmet fresh on long rides.
Optimized compatibility with Leatt neck braces for riders seeking additional protection.

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Leatt MTB Enduro 4.0 V23 Stealth Bicycle Helmets

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