Global Helmet Intelligence Platform

HJC

R-Phia71 Carbon MD

VERIFIZIERTE TECHNISCHE SPEZIFIKATION Full Face ECE 22.06, DOT, Snell M2020 PIM+ (Carbon, Aramid, Fiberglass) 1550g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Integralhelm
Certifications ECE 22.06, DOT, Snell M2020
Measured Weight 1550 g
Shell Material PIM+ (Carbon, Aramid, Fiberglass)
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 ✓ ECE 22.06, DOT, Snell M2020
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.

Runs slightly snug out of the box but breaks in within 50 miles. Interior designed for glasses-friendly temples.

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"

Der HJC RPHA 71 verkörpert die Spitze der Sport-Touring-Leistung, indem er schlanke, aggressive Designlinien mit ingenieurtechnischen Rennsport-Lösungen verbindet. Gefertigt aus der proprietären Premium Integrated Matrix Plus (PIM+)-Schale – einer hochwertigen Webart aus Kohlefaser, Aramid und Glasfaser – bietet dieser Helm außergewöhnlichen Aufprallschutz bei gleichzeitig leichtem Gewicht. Seine aerodynamische Silhouette ist so gestaltet, dass Luftwiderstand und Winddruck minimiert werden, was für Stabilität bei hohen Geschwindigkeiten und weniger Ermüdung auf langen Touren sorgt.

Für den modernen Motorradfahrer konzipiert, verfügt der RPHA 71 über ein fortschrittliches Kanalsystem zur Belüftung, das den Luftstrom optimiert und Wärme sowie Feuchtigkeit über hintere Auslassöffnungen abführt, um ein kühles, klimatisiertes Innenklima zu gewährleisten. Auch das Visiersystem ist hochwertig verarbeitet: Es ist Pinlock MaxVision-kompatibel und mit dem Rapid-Fire II-Ratschenmechanismus für schnellen,

Key Highlights:

Premium Integrated Matrix Plus (PIM+) shell Multi-density EPS liner Advanced channeling ventilation Rapid-Fire II shield ratchet system Emergency Quick Release Bluetooth speaker pockets Crown and cheek pads washable and removable Pinlock MaxVision ready Anti-fog breathguard

Rider Profile & Intended Use

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

HJC (South Korea)

Engineering & Biomechanical Safety Analysis

The R-Phia71 Carbon MD is engineered as a high-integrity Full Face protective system, utilizing a structural shell constructed from PIM+ (Carbon, Aramid, Fiberglass). 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 22.06, 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 PIM+ (Carbon, Aramid, Fiberglass) Äußeres Strukturmaterial
Measured Weight 1550 g (3.42) Ungefähres Gewicht in mittlerer Größe
Warranty Not specified Dauer der Herstellergarantie
Hauptanwendungsbereich Not specified Optimierte Fahrorientierung

Safety & Certifications

Zertifizierung ECE 22.06, DOT, Snell M2020 Zertifizierter Sicherheitsstandard
Rotational Protection Not specified Reduziert Rotationsaufprall
Notentriegelung Not specified Schnellentnahme der Wangenpolster
Kinnriemen Not verified Art des Kinnriemenverschlusses

Acoustics & Aerodynamics

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

Technology & Convenience

Integration von Kommunikationssystemen N/A 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 Legal
Required: DOT

Snell and DOT dual certified.

🇪🇺 EU Legal
Required: ECE 22.06

ECE 22.06 homologated.

🇮🇳 IN Legal
Required: ISI IS 4151

HJC India officially distributes this model.

Regional Legality Guidance

US

Status: legal

Required: DOT

Snell and DOT dual certified.

EU

Status: legal

Required: ECE 22.06

ECE 22.06 homologated.

IN

Status: legal

Required: ISI IS 4151

HJC India officially distributes this model.

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VEHICLE SYNERGY & ERGONOMICS

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Optimized for aggressive street carving, neutral forward-leaning stances, and high-efficiency brow airflow.

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Global 92% Match

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Aerodynamic and posture alignment certified for Global riders.

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
ECE 22.06, DOT, Snell M2020 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-06-12