HJC · i90
HJC i90 Tech TC-5
Quick Facts at a Glance
Verified Safety Snapshot
How this helmet’s verified certifications map to recognized safety homologations and crash testing.
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.
Verified Fit & Sizing Guide
Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.
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:
Rider Profile & Intended Use
Dove acquistare
| Rivenditore | Prezzo | Availability | |
|---|---|---|---|
| Amazon (US) | Controlla il prezzo attuale | Visualizza sul sito | Controlla il prezzo → |
Cronologia e tendenze dei prezzi
ℹ️ Helmetsan è un motore indipendente per la sicurezza e le decisioni in ambito motociclistico. Quando controlli i prezzi o acquisti tramite link dei rivenditori, Helmetsan potrebbe ricevere una commissione di affiliazione senza costi aggiuntivi per te.
Product Concept & Specifications
HJC (South Korea)Engineering & Biomechanical Safety Analysis
The HJC i90 Tech TC-5 features a polycarbonate shell for lightweight durability and advanced safety. Its modular design offers versatility with a flip-up chin bar, while the intermediate oval head shape ensures a comfortable fit. The helmet includes adjustable ventilation for airflow control, and its interior padding is moisture-wicking for extended comfort. Safety tech includes a multi-layer EPS liner for impact absorption and a Pinlock-ready shield to reduce fogging.
The HJC i90 Tech TC-5 is engineered as a high-integrity Modular 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.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Regional Legality & Compliance
Meets FMVSS 218 standards for street use.
Compliant with provincial regulations where DOT or ECE 22.05 are accepted.
Regional Legality Guidance
Certification Documents & References
Interactive Size & Fit Finder
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.
Geo Pricing & Availability
| Country | Price | Availability | Source | Updated |
|---|---|---|---|---|
| US | 249.99 USD | In Stock | Official | 2024-05-22 |
| CA | 339.99 CAD | In Stock | Official | 2024-05-22 |
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Compatible Motorcycles for the HJC i90 Tech TC-5
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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.