Leatt · MTB 4.0 V21 · Leatt MTB 4.0 V21
Leatt MTB 4.0 V21 Carbon
Design Concept & Background
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Leatt MTB 4.0 V21 Carbon is a high-performance motorcycle 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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$349.95 | ● 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 Carbon prioritizes rider safety through its integrated 360° Turbine Technology, which significantly reduces rotational acceleration and concussion risk during impacts. Comfort is bolstered by a lightweight carbon fiber shell and moisture-wicking, breathable inner liners that ensure a secure, stable fit. Ventilation is optimized via 13 strategically placed ports and large airflow channels, providing consistent cooling even during high-intensity off-road riding.
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Aero-acoustic profile pending track testing. Ventilation flow score awaiting CFD test.
Technology & Convenience
Interactive Size & Fit Finder
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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