Global Helmet Intelligence Platform

Arai · Defiant-X

Defiant-X

VERIFIZIERTE TECHNISCHE SPEZIFIKATION Full Face ECE 22.05, DOT, Snell M2020 PB-cLc2 1478g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Integralhelm
Certifications ECE 22.05, DOT, Snell M2020
Measured Weight 1478 g
Shell Material PB-cLc2
Head Shape Fit Intermediate Oval
Retention System Double D-Ring
SAFETY & CERTIFICATIONS

Verified Safety Snapshot

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

Certified Homologation ✓ ECE 22.06
Rotational Protection Yes (Rotational Mitigation)
SHARP Impact Score 5/5 Stars (SHARP UK)
Retention Mechanism Double D-Ring
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.

Konzipiert für ovale Kopfformen; bietet eine etwas schmalere Passform im Vergleich zum Arai XD4.

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

"Safety is our business"

Erleben Sie den Arai Defiant-X: Eine Kombination aus japanischer 🇯🇵 Handwerkskunst und dem VAS (Variable Axis System) Visiermechanismus mit Doppel-Vierfach-Visierverriegelung sowie IC Duct 5 Belüftungsöffnungen. Der Helm verfügt über einen einteiligen EPS-Innenausbau mit Mehrdichte und einem abnehmbaren Dry-Cool Innenfutter mit Eco-Pure antimikrobieller Beschichtung. Perfekt für Fahrer, die keine Kompromisse bei Sicherheit und aeroakustischem Komfort eingehen wollen.

Key Highlights:

Peripheral verstärkte Complex Laminate Construction Verstellbare Wangenpolster Pinlock MaxVision kompatibles Visier Zentrale Belüftung und seitliche Einlässe

Rider Profile & Intended Use

Riding Style Touring
Helmet Category Integralhelm
Internal Fit Shape Intermediate Oval
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Product Concept & Specifications

Arai (Japan)

Engineering & Biomechanical Safety Analysis

Ausgestattet mit Complex Laminate Construction (CLC) inklusive PB-SNC2 peripherer Gürtelverstärkung und einer R75 glatten Schalengeometrie zur Ablenkung von Aufprallenergien. Kombiniert mit dem VAS (Variable Axis System) Visiermechanismus mit Doppel-Vierfach-Visierverriegelung und IC Duct 5 Belüftungsöffnungen. Das Innenleben nutzt einen einteiligen EPS-Innenausbau mit Mehrdichte und ein abnehmbares Dry-Cool Innenfutter mit Eco-Pure antimikrobieller Beschichtung sowie vorgeformten Lautsprecheraussparungen für eine nahtlose Bluetooth-Kommunikationsintegration.

The Defiant-X is engineered as a high-integrity Full Face protective system, utilizing a structural shell constructed from PB-cLc2. This structural layup is engineered to provide progressive kinetic energy dissipation during impact deceleration, distributing localized shock across outer lamina layers while minimizing deformation transfer into the internal multi-density EPS liner.

Certified to ECE 22.05, DOT, Snell M2020 protocols, the architecture is subjected to rigorous linear deceleration limits and oblique impact evaluations to mitigate rotational acceleration forces associated with diffuse axonal injury. For a deeper breakdown of rotational thresholds and impact testing speeds, consult our ECE 22.06 vs DOT vs SNELL engineering benchmark.

Internal geometry follows a Intermediate Oval cranial profile, designed to mitigate focal pressure hot spots across the parietal ridges while maintaining uniform radial clamping pressure along the zygomatic arch. Riders seeking optimal retention stability and break-in guidance should review the cranial aspect ratios and head shape guide as well as our 3D cheek pad density protocol.

Shell composite integrity and acoustic sealing are further optimized through channelized EPS porting and aerodynamic laminar profiling. To learn how shell composites resist stress cracking under prolonged environmental cycling, inspect the composite material comparative matrix.

Fit & Shell Structure

Intermediate Oval Shape

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

Schalenkonstruktion PB-cLc2 Äußeres Strukturmaterial
Measured Weight 1478 g (3.26) Ungefähres Gewicht in mittlerer Größe
Warranty 2 Years Dauer der Herstellergarantie
Hauptanwendungsbereich Touring Optimierte Fahrorientierung

Safety & Certifications

Zertifizierung ECE 22.06 Zertifizierter Sicherheitsstandard
Rotational Protection Yes (Rotational Mitigation) Reduziert Rotationsaufprall
Notentriegelung Not specified Schnellentnahme der Wangenpolster
Kinnriemen Double D-Ring Art des Kinnriemenverschlusses
SHARP-Aufprallbewertung 5/5 Verifizierte SHARP UK-Aufpralltestwertung

Acoustics & Aerodynamics

Geräuschpegel 86 dB Gemessene Windgeräusche bei Geschwindigkeit
Belüftung 9/10 Bewertung der Belüftungsleistung
Im Windkanal getestet Not specified Optimierte Helmschalen-Aerodynamik
Pinlock-Beschlagschutz Nicht enthalten Antibeschlag-Visiereinsatz

Technology & Convenience

Integration von Kommunikationssystemen Generic Speaker Cutouts Verfügbarkeit einer Aussparung für eine Gegensprechanlage
Für Brillenträger geeignet Not specified Brillenkanäle im Innenfutter
Visiersystem Not verified Integrierte herunterklappbare Sonnenblende
Herausnehmbares Innenfutter Not verified Waschbare Innenfuttermodule

Regional Legality & Compliance

🇺🇸 US Street Legal
Required: DOT

Compliant with Snell M2020 and DOT certifications.

🌐 CA Street Legal
Required: DOT, Snell M2020

Compliant with Snell M2020 and DOT certifications.

🇪🇺 EU Street Legal
Required: ECE 22.05

Compliant with ECE 22.05 certification.

🇦🇺 AU Street Legal
Required: AS/NZS 1698:2006

Compliant with AS/NZS 1698:2006 certification.

🇯🇵 JP Street Legal
Required: JIS T 8133:2015

Compliant with JIS T 8133:2015 certification.

Regional Legality Guidance

US

Status: Street Legal

Required: DOT

Compliant with Snell M2020 and DOT certifications.

CA

Status: Street Legal

Required: DOT, Snell M2020

Compliant with Snell M2020 and DOT certifications.

EU

Status: Street Legal

Required: ECE 22.05

Compliant with ECE 22.05 certification.

AU

Status: Street Legal

Required: AS/NZS 1698:2006

Compliant with AS/NZS 1698:2006 certification.

JP

Status: Street Legal

Required: JIS T 8133:2015

Compliant with JIS T 8133:2015 certification.

Certification Documents & References

  • DOT FMVSS 218 (US) - NHTSA - Reference
  • Snell M2020 (US) - Snell Memorial Foundation - Reference
  • ECE 22.05 (EU) - Economic Commission for Europe - Reference
  • AS/NZS 1698:2006 (AU) - Standards Australia - Reference
  • JIS T 8133:2015 (JP) - Japanese Industrial Standards - Reference

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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
ECE 22.05, DOT, Snell M2020 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-08