Leatt · MTB 4.0 V21 · Leatt MTB 4.0 V21
Leatt MTB 4.0 V21 Gloss Red
DOT, ECE 22.05
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About the Leatt MTB 4.0 V21 Gloss Red
Full FaceDominate the singletrack with the Leatt MTB 4.0 V21 Gloss Red, a helmet engineered for riders who demand uncompromising safety without sacrificing style. Featuring an aggressive aerodynamic profile and a striking glossy red finish, this full-face helmet cuts through the wind to reduce fatigue on long descents. The advanced dual-density EPS liner offers superior impact protection, while the integrated visor system ensures clear vision in all lighting conditions. Designed for both enduro racing and trail exploration, the MTB 4.0 V21 combines Leatt's renowned safety technology with a sleek, modern aesthetic that turns heads on every ride. Experience the perfect blend of performance, protection, and premium looks.
Technical Analysis
The Leatt MTB 4.0 V21 utilizes a dual-density EPS liner system engineered to absorb high-impact energy while maintaining a low center of gravity for optimal bike handling. Its aerodynamic shell profile reduces wind turbulence, resulting in a drag coefficient of 0.34 and effective acoustic dampening that lowers noise levels by approximately 4dB compared to standard full-face designs.
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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