HJC · RPHA 91
HJC RPHA 91
Design Concept & Background
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HJC RPHA 91 is a high-performance Modular helmet engineered by HJC to meet high standards of safety and comfort. Inspect its detailed design background and specifications below.
Key Highlights:
Rider Profile & Intended Use
Where to buy
| Marketplace | Price | Availability | Updated | |
|---|---|---|---|---|
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Amazon (US)
Store Profile
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$549.90 | In Stock | 1 second ago | Buy Now → |
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Revzilla Us
Store Profile
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Check price | ● View on site | — | Buy Now → |
Certified HJC Stores in US
Road Rider
Authorized Dealer📍 San Jose, CA
Moto Liberty
Authorized Dealer📍 Dallas, TX
J&P Cycles
Authorized Dealer📍 Anamosa, IA; Orlando, FL
Iron Pony Motorsports
Authorized Dealer📍 Columbus, OH
Helmet House
Authorized Dealer📍 California
Dennis Kirk
Authorized Dealer📍 Rush City, MN
Cycle Gear
Authorized Dealer📍 Multiple locations nationwide
Competition Accessories
Authorized Dealer📍 Tipp City, OH
Price History
Product Concept & Specifications
HJC (South Korea)Engineering & Technical Analysis
The HJC RPHA 91 features advanced PIM Evo shell construction for superior impact protection, combined with a modular design offering versatility. Its intermediate oval head shape ensures a comfortable fit, while advanced ventilation channels provide efficient airflow to keep riders cool. The helmet integrates safety tech like a multi-layer impact-absorbing liner and a secure chin strap system, balancing performance and comfort for long rides.
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Quiet Index: Superior sound damping and isolated ear cavity structures. High flow channels optimize high-velocity dynamic ventilation.
Technology & Convenience
Regional Legality & Compliance
Meets DOT FMVSS 218 standards for street use in the United States.
Regional Legality Guidance
Certification Documents & References
Interactive Size & Fit Finder
Intermediate oval head shape ensures a comfortable fit for most 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.
Part numbers
| Product style | MFR. product # | SKU | Availability |
|---|---|---|---|
| Matte Black / | — |
HJC-RPHA-BLK | instock |
| Anthracite / | — |
HJC-RPHA-GRE | instock |
| Silver Metallic / | — |
HJC-RPHA-GRE | instock |
| Track TC-5 / | — |
HJC-RPHA-TRA | instock |
| Apex Blue / | — |
HJC-RPHA-APE | instock |
| Apex Red / | — |
HJC-RPHA-APE | instock |
Available Colors & Graphics
Geo Pricing & Availability
| Country | Price | Availability | Source | Updated |
|---|---|---|---|---|
| US | 549.9 USD | In Stock | Manufacturer | 2022-01-01 |
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