Leatt MTB Endurance 4.0 Helmet — Description
The Leatt MTB Endurance 4.0 Helmet is a lightweight cross-country and endurance mountain-bike helmet designed for riders who prioritize ventilation, comfort, and advanced impact protection during long rides and high-effort pedaling. It improves on the Endurance 3.0 with even lighter weight, more ventilation, and enhanced airflow channels.
Overview
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Type: Open-face MTB helmet
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Typical weight: from ≈315 g (depending on size)
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Intended use: XC racing, endurance rides, gravel, and fast trail riding
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Sizes:
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S: 51–55 cm
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M: 55–59 cm
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L: 59–63 cm
Key Features
360° Turbine Technology
Leatt’s 360° Turbine Technology uses small energy-absorbing discs inside the helmet. These discs can move slightly during a crash to:
Lightweight in-mold construction
The helmet uses a lightweight polymer shell with in-molded EPS impact foam and a PowerBridge reinforcement structure to improve energy absorption while keeping the weight low.
High-efficiency ventilation
Designed for long rides in hot conditions, it features:
This ventilation design helps maintain airflow even during slower climbing sections.
Comfort and fit
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Adjustable rear fit system for precise sizing
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Flat Lock strap divider to prevent strap twisting
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Moisture-wicking, washable liner
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Soft chin straps for comfort on long rides
Practical rider features
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Fidlock magnetic buckle for easy one-handed closure
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Eyewear docking ports for storing sunglasses
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Anti-odor liner to manage sweat during long rides
Safety certifications
The helmet meets major international cycling safety standards:
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CPSC 1203 (USA)
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EN1078 (EU)
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ASTM F1447
✅ Summary:
The Leatt MTB Endurance 4.0 is an ultralight, highly ventilated XC/trail helmet built for long-distance mountain biking and gravel riding, combining strong ventilation, rotational-impact protection, and premium comfort features.
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