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HJC · i90

HJC i90 Gloss Schwarzes

VERIFIZIERTE TECHNISCHE SPEZIFIKATION DOT Polycarbonate 1720g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Not specified
Certifications DOT
Measured Weight 1720 g
Shell Material Polycarbonate
Head Shape Fit Intermediate Oval
Retention System Micrometric
SAFETY & CERTIFICATIONS

Verified Safety Snapshot

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

Certified Homologation ✓ DOT
Rotational Protection ECE 22.05
SHARP Impact Score Not tested by SHARP
Retention Mechanism Micrometric
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.

Intermediate Oval shape provides a neutral fit suitable for the majority of riders.

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 First"

The HJC i90 Modular Helmet is engineered for the modern rider, boasting sleek styling that combines form and function. Its advanced engineering features a lightweight polycarbonate shell, designed to provide maximum protection while minimizing weight. Aerodynamics play a crucial role in reducing wind noise and buffeting, ensuring a smoother ride. Efficient ventilation channels keep the rider cool, even during extended periods of use. The HJC i90's Intermediate Oval head shape ensures a comfortable fit for most riders, while its Advanced Integrated Matrix Plus (AIM+) shell provides superior impact protection. With its modular design and advanced safety features, the HJC i90 is the perfect choice for riders seeking a balance of style, performance, and protection.

Key Highlights:

Polycarbonate shell Modular design Intermediate Oval fit Advanced ventilation channels Moisture-wicking interior Internal Sun Visor

Rider Profile & Intended Use

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

HJC (South Korea)

Engineering & Biomechanical Safety Analysis

Der HJC i90-Helm verfügt über eine Polycarbonat-Schale für leichtes und langlebiges Design sowie fortschrittliche Sicherheit. Sein modulares Design bietet Vielseitigkeit mit einem klappbaren Kinnbügel, während die ovale Kopfform für einen bequemen Sitz sorgt. Der Helm verfügt über eine fortschrittliche Belüftung mit verstellbaren Luftkanälen, um Fahrer kühl zu halten, und ein feuchtigkeitsableitendes Innenfutter für mehr Komfort auf langen Fahrten.

The HJC i90 Gloss Schwarzes is engineered as a high-integrity motorcycle protective system, utilizing a structural shell constructed from Polycarbonate. 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 DOT 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 Polycarbonate Äußeres Strukturmaterial
Measured Weight 1720 g (3.79) Ungefähres Gewicht in mittlerer Größe
Warranty 5 Years Dauer der Herstellergarantie
Hauptanwendungsbereich Touring Optimierte Fahrorientierung

Safety & Certifications

Zertifizierung DOT Zertifizierter Sicherheitsstandard
Rotational Protection ECE 22.05 Reduziert Rotationsaufprall
Notentriegelung Not specified Schnellentnahme der Wangenpolster
Kinnriemen Micrometric Art des Kinnriemenverschlusses

Acoustics & Aerodynamics

Geräuschpegel 92 dB Gemessene Windgeräusche bei Geschwindigkeit
Belüftung 7/10 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

Meets FMVSS 218 standards for street use.

🌐 CA Street Legal
Required: DOT, ECE 22.05

Compliant with provincial regulations where DOT or ECE 22.05 are accepted.

Regional Legality Guidance

US

Status: Street Legal

Required: DOT

Meets FMVSS 218 standards for street use.

CA

Status: Street Legal

Required: DOT, ECE 22.05

Compliant with provincial regulations where DOT or ECE 22.05 are accepted.

Certification Documents & References

  • DOT (US) - Department of Transportation - Reference
  • ECE 22.05 (EU) - Economic Commission for Europe - Reference

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VEHICLE SYNERGY & ERGONOMICS

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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
HJC Official Specification
Safety Testing Agency
DOT Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-06-12