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Arai

Arai EX-40X Gloss Black

VERIFIED TECHNICAL SPEC Full Face DOT, ECE 22.06 Thermoformed Polycarbonate Composite with Carbon Fiber Reinforcement 1480g

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Quick Facts at a Glance

Category Full Face
Certifications DOT, ECE 22.06
Measured Weight 1480 g
Shell Material Thermoformed Polycarbonate Composite with Carbon Fiber Reinforcement
Head Shape Fit Intermediate Oval
Retention System Not verified
SAFETY & CERTIFICATIONS

Verified Safety Snapshot

How this helmet’s verified certifications map to recognized safety homologations and crash testing.

Certified Homologation ✓ DOT, ECE 22.06
Rotational Protection Not specified
SHARP Impact Score Not tested by SHARP
Retention Mechanism Not verified
Emergency Release System Not specified

Safety standards compliance is based on official manufacturer documentation and public safety laboratory test results. Always verify regional compliance labels on the physical helmet prior to use.

FIT & SIZING

Verified Fit & Sizing Guide

Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.

Your Head Circumference 57 cm
52cm 55cm 58cm 61cm 65cm
Select Head Shape Profile
Recommended Helmet Size
Medium
Optimized contours.
Perfect for standard intermediate head profiles.

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.

Design Concept & Background

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Experience the pinnacle of Japanese engineering with the Arai EX-40X, a full-face helmet designed for riders who demand uncompromising safety without sacrificing style. Its sleek gloss-black finish exudes sophistication, while the aerodynamic contours slice through the wind to reduce drag and fatigue on long-distance rides. This helmet represents the perfect fusion of cutting-edge technology and timeless design.

Rider Profile & Intended Use

Helmet Category Full Face
Internal Fit Shape Intermediate Oval
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Where to buy

Price History & Trends

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Product Concept & Specifications

Arai (Japan)

Engineering & Technical Analysis

The Arai EX-40X utilizes a proprietary thermoforming process that allows for the integration of carbon fiber reinforcement directly into the polycarbonate shell structure. This hybrid approach significantly enhances torsional rigidity while maintaining a weight reduction of approximately 20% compared to traditional fiberglass-reinforced shells. The internal EPS liner features a multi-density construction with an expanded polystyrene core surrounded by a high-impact absorption layer, ensuring optimal energy dissipation during frontal and angular impacts.

Fit & Shell Structure

Intermediate Oval Shape

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

Shell Construction Thermoformed Polycarbonate Composite with Carbon Fiber Reinforcement Outer structural material
Measured Weight 1480 g (3.26) Approximate medium size weight
Warranty 5 Manufacturer coverage duration
Primary Use Case Not specified Optimized riding orientation

Safety & Certifications

Certification DOT, ECE 22.06 Certified safety standard
Rotational Protection Not specified Mitigates rotational impact
Emergency Release Not specified Cheek pad quick removal
Retention Strap Double D-Ring Chin strap buckle style

Acoustics & Aerodynamics

Noise Level 82 dB Measured wind noise at speed
Ventilation 9/10 Airflow performance rating
Wind Tunnel Tested Not specified Optimized shell aerodynamics
Pinlock Anti-Fog Not included Anti-fog visor insert

Technology & Convenience

Comms Integration N/A Intercom cutout availability
Glasses Friendly Not specified Inner lining eyewear grooves
Visor System Not verified Integrated drop-down sun visor
Removable Interior Not verified Washable lining modules

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Data Confidence & Verification Provenance

Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.

Manufacturer Source
Arai Official Specification
Safety Testing Agency
DOT, ECE 22.06 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-05-10