Leatt · MTB 4.0 V21 · Leatt MTB 4.0 V21
Leatt MTB 4.0 V21 Matte Black
Design Concept & Background
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Leatt MTB 4.0 V21 Matte Black is a high-performance Full Face helmet engineered by Leatt to meet high standards of safety and comfort. Inspect its detailed design background and specifications below.
Rider Profile & Intended Use
Where to buy
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Amazon (US)
Store Profile
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$299.95 | ● In Stock | 1 second ago | Buy Now → |
Certified Leatt Stores in US
Rocky Mountain ATV/MC
Authorized Dealer📍 Tillamook, OR and online
Price History
Product Concept & Specifications
Leatt (New Zealand)Engineering & Technical Analysis
The Leatt MTB 4.0 V21 utilizes a multi-density EPS liner architecture designed to manage rotational impact forces specific to mountain biking dynamics. Its aerodynamic shell geometry minimizes wind shear while maintaining structural rigidity through carbon fiber reinforcement in critical zones.
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Quiet Index: Superior sound damping and isolated ear cavity structures. Good flow balance utilizing EPS exhaust ports.
Technology & Convenience
Certification Documents & References
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.
Available Colors & Graphics
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