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HJC · RPHA 1N · HJC RPHA 1N

HJC RPHA 1N Black

VERIFIED TECHNICAL SPEC Track/Race DOT, ECE 22.06, FIM PIM+ 1500g

Quick Facts at a Glance

Category Track/Race
Certifications DOT, ECE 22.06, FIM
Measured Weight 1500 g
Shell Material PIM+
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, FIM
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.

Intermediate oval head shape, fits medium to long oval-shaped heads.

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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The HJC RPHA 1N helmet embodies the perfect blend of sleek styling and advanced engineering, delivering unparalleled performance and protection on the track. Its aerodynamic design slices through the air with ease, reducing wind resistance and drag while maintaining a stable and secure fit. The ventilation system is meticulously crafted to provide optimal airflow, keeping the rider cool and focused during even the most intense rides. With its sleek, streamlined appearance, the RPHA 1N helmet is not only a formidable competitor on the track but also a stylish statement piece. Its advanced engineering and cutting-edge features make it the ultimate choice for riders who demand the best. Whether you're pushing the limits of speed or simply enjoying a spirited ride, the HJC RPHA 1N helmet has got you covered.

Key Highlights:

PIM+ shell MIPS (Multi-directional Impact Protection System) Breathable ventilation system Adjustable cheek pads Intermediate Oval head shape Aerodynamic design Optimal airflow Pinlock MaxVision compatible

Rider Profile & Intended Use

Riding Style Track
Helmet Category Track/Race
Internal Fit Shape Intermediate Oval
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Where to buy

Price History & Trends

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Product Concept & Specifications

HJC (South Korea)

Engineering & Technical Analysis

The HJC RPHA 1N Black helmet features a PIM+ shell, providing exceptional safety and durability. It offers a comfortable fit with its Intermediate Oval head shape and adjustable ventilation system for optimal airflow. This track/race helmet is designed to provide a secure and cool riding experience.

Fit & Shell Structure

Intermediate Oval Shape

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

Shell Construction PIM+ Outer structural material
Measured Weight 1500 g (3.31) Approximate medium size weight
Warranty 1 Manufacturer coverage duration
Primary Use Case Track Optimized riding orientation

Safety & Certifications

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

Acoustics & Aerodynamics

Noise Level 84 dB Measured wind noise at speed
Ventilation 8/10 Airflow performance rating
Wind Tunnel Tested Not specified Optimized shell aerodynamics
Pinlock Anti-Fog Not included Anti-fog visor insert

Technology & Convenience

Comms Integration Generic Speaker Cutouts 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

Regional Legality & Compliance

🇺🇸 US Street Legal
Required: DOT

Meets DOT FMVSS 218 standards for street use and FIM/ECE 22.06 for track use.

Regional Legality Guidance

US

Status: Street Legal

Required: DOT

Meets DOT FMVSS 218 standards for street use and FIM/ECE 22.06 for track use.

Certification Documents & References

  • ECE 22.06 (EU) - Economic Commission for Europe - Reference
  • FIM (EU) - Fu00e9du00e9ration Internationale de Motocyclisme - Reference
  • DOT (US) - National Highway Traffic Safety Administration - 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
HJC Official Specification
Safety Testing Agency
DOT, ECE 22.06, FIM Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-05-09