Leatt · MTB 4.0 V21 · Leatt MTB 4.0 V21
Leatt MTB 4.0 V21 Carbon
DOT, ECE 22.05
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About the Leatt MTB 4.0 V21 Carbon
Full FaceDominate the trail with the Leatt MTB 4.0 V21 Carbon, where cutting-edge safety meets aggressive aerodynamics. Crafted from high-modulus carbon fiber, this full-face helmet delivers an unmatched strength-to-weight ratio, ensuring you stay light on your feet without compromising protection. The integrated MIPS system provides critical defense against rotational impacts, a common scenario in technical downhill riding. Experience superior airflow through the optimized venting system, keeping you cool even during the most intense descents. With its sleek, modern aesthetic and premium finish, it is not just gear; it is a statement of performance. Trust Leatt to push the boundaries of helmet technology, offering peace of mind so you can focus on conquering the steepest lines.
Technical Analysis
The Leatt MTB 4.0 V21 Carbon utilizes a multi-density EPS liner and an integrated MIPS (Multi-directional Impact Protection System) to mitigate rotational forces during oblique impacts. Its carbon fiber composite shell offers superior stiffness-to-weight ratios compared to traditional fiberglass, reducing overall mass while maintaining crash energy absorption capabilities.
Safety & Aero-Acoustics HUD
SHARP impact test results pending.
Extremely Quiet: Superior long-distance sound damping.
Good Flow: Standard EPS exhaust ports.
Where to buy
All online retailers
Certified Leatt Stores in US
Rocky Mountain ATV/MC
Authorized Dealer📍 Tillamook, OR and online
Price History
Interactive Size & Fit Finder
Leatt MTB 4.0 V21 is a full-face helmet designed for mountain biking with an extended rear coverage for better protection against impacts from above and behind.
How to measure
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, and repeat for consistency.
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