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HJC · RPHA 11 Pro · HJC RPHA 11 Pro

HJC RPHA 11 Pro Semi Flat Black

DOT ECE 22.05
HJC RPHA 11 Pro Semi Flat Black
HJC RPHA 11 Pro Semi Flat Black
HJC RPHA 11 Pro Semi Flat Black

Design Concept & Background

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HJC RPHA 11 Pro Semi Flat Black is a high-performance Track/Race helmet engineered by HJC to meet high standards of safety and comfort. Inspect its detailed design background and specifications below.

Key Highlights:

PIM+ shell for enhanced impact resistance Three-layer cheekpad design for comfort MIPS Multi-directional Impact Protection System Large air intake and exhaust system for ventilation Adjustable visor for optimal fit DOT and ECE 22.05 certification for safety Premium fit for track and racing enthusiasts

Rider Profile & Intended Use

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

Best price $399.99 Amazon (US)
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Certified HJC Stores in US

Price History

Product Concept & Specifications

HJC (South Korea)

Engineering & Technical Analysis

The HJC RPHA 11 Pro features advanced safety with its PIM+ shell, offering lightweight durability and impact resistance. Its intermediate oval head shape ensures a snug, comfortable fit, while advanced ventilation channels promote airflow to keep riders cool. The helmet's track/race design prioritizes aerodynamics and performance, making it ideal for high-speed riding.

Fit & Shell Structure

Intermediate Oval Shape

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

[MATR.SHEL] Shell Construction PIM+ Outer structural material
[PHYS.MASS] Measured Weight 1420g (3.13) Approximate medium size weight
[COVG.YEAR] Warranty 1 Manufacturer coverage duration
[OPER.ROLE] Primary Use Case Racing Optimized riding orientation

Safety & Certifications

[SYS.CERT] Homologation DOT, ECE 22.05 Certified safety standard
[SYS.PROT] Rotational Protection MIPS Mitigates rotational impact
[SYS.EQRS] Emergency Release Not Equipped Cheek pad quick removal
[SYS.LOCK] Retention Strap Double D-Ring Chin strap buckle style

Acoustics & Aerodynamics

96 dB
Acoustics
9 /10
Ventilation

Moderate Index: Standard wind noise suppression at highway speeds. High flow channels optimize high-velocity dynamic ventilation.

[AERO.TEST] Wind Tunnel Tested No Optimized shell aerodynamics
[VISR.FOG] Pinlock Tech Not Included Anti-fog shield insertion

Technology & Convenience

[SYS.COMM] Comms Integration Generic Speaker Cutouts Intercom cutout availability
[FIT.GLASS] Glasses Friendly No Inner lining eyewear grooves
[VISR.SYS] Visor Shield Tech Single Visor Integrated drop-down sun visor
[FIT.LINR] Removable Interior Partial / Fixed Washable lining modules

Regional Legality & Compliance

🇺🇸 US Street Legal
Required: DOT

Meets DOT and ECE 22.05 standards

🌐 CA Street Legal
Required: DOT, ECE 22.05

Meets DOT and ECE 22.05 standards

Regional Legality Guidance

US

Status: Street Legal

Required: DOT

Meets DOT and ECE 22.05 standards

CA

Status: Street Legal

Required: DOT, ECE 22.05

Meets DOT and ECE 22.05 standards

Certification Documents & References

  • DOT FMVSS 218 (US) - Department of Transportation - Reference
  • ECE 22.05 (EU) - Economic Commission for Europe - Reference

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