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Leatt · MTB 4.0 V21

莱特 MTB 4.0 V21

DOT ECE 22.05
莱特 MTB 4.0 V21
莱特 MTB 4.0 V21
莱特 MTB 4.0 V21

Design Concept & Background

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莱特 MTB 4.0 V21 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

Internal Fit Shape Intermediate Oval
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Where to buy

Best price $299.95 Amazon (US)
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Product Concept & Specifications

Leatt (New Zealand)

Engineering & Technical Analysis

利特 MTB 4.0 V21 采用多密度 EPS 内衬和集成 MIPS 系统，以应对高冲击坠车时的旋转力。其气动外壳设计可减少高速行驶时的风涡流，而可调节的遮阳板机制则在保持结构刚性的同时确保视觉清晰度。

Fit & Shell Structure

Intermediate Oval Shape

Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.

[MATR.SHEL] Shell Construction Carbon Fiber Outer structural material
[PHYS.MASS] Measured Weight 980g (2.16) Approximate medium size weight
[COVG.YEAR] Warranty 2 Manufacturer coverage duration
[OPER.ROLE] Primary Use Case All-round Sport Optimized riding orientation

Safety & Certifications

[SYS.CERT] Homologation DOT, ECE 22.05 Certified safety standard
[SYS.PROT] Rotational Protection Standard EPS Mitigates rotational impact
[SYS.EQRS] Emergency Release Not Equipped Cheek pad quick removal
[SYS.LOCK] Retention Strap Double D-Ring Chin strap buckle style

Acoustics & Aerodynamics

82 dB
Acoustics
6 /10
Ventilation

Quiet Index: Superior sound damping and isolated ear cavity structures. Good flow balance utilizing EPS exhaust ports.

[AERO.TEST] Wind Tunnel Tested No Optimized shell aerodynamics
[VISR.FOG] Pinlock Tech Not Included Anti-fog shield insertion

Technology & Convenience

[SYS.COMM] Comms Integration Generic Speaker Cutouts Intercom cutout availability
[FIT.GLASS] Glasses Friendly No Inner lining eyewear grooves
[VISR.SYS] Visor Shield Tech Single Visor Integrated drop-down sun visor
[FIT.LINR] Removable Interior Partial / Fixed Washable lining modules

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