The Leatt MTB AllMtn 4.0 Helmet is a high-performance open-face helmet designed for aggressive trail and all-mountain riding. Built with advanced impact protection, superior ventilation, and a durable shell structure, it provides maximum safety and comfort for demanding terrain and high-speed descents.
Key Features:
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360° Turbine Technology reduces linear and rotational impact forces
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Dual-density foam (EPS + EPO) for broad-range impact energy absorption
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PowerBridge shell structure for improved load distribution
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In-molded four-piece polymer compound shell
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18–20 ventilation ports with MaxiFlow air channeling for efficient cooling
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Adjustable breakaway visor minimizes rotational forces during impact
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Fidlock magnetic buckle for easy, glove-friendly closure
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Eyewear docking port with anti-slip grip
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Moisture-wicking, breathable, anti-odor, and washable inner liner
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Extended rear coverage for enhanced head protection
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Premium bottom trim for durability and finished look
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Complies with AS/NZS 2063:2008, EN1078, and CPSC 1203 safety standards
Specifications:
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Weight:
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Small: ~439 g
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Medium: ~477 g
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Sizes:
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Small: 51–55 cm
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Medium: 55–59 cm
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Large: 59–63 cm
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Shell Material: Polymer compound with PowerBridge structure
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Core Material: Dual-density EPS + EPO foam
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Ventilation: 18–20 vents with MaxiFlow air channels
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Visor: Adjustable, breakaway design
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Closure System: Fidlock magnetic buckle
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Liner: Dri-Lex moisture-wicking, breathable, anti-odor, washable
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Certifications: AS/NZS 2063:2008, EN1078, CPSC 1203