HJC · RPHA 11 Pro
HJC RPHA 11 Pro Semi Flat Black
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.
Le RPHA 11 Pro présente une forme de tête ovale intermédiaire. Il est connu pour son ajustement précis orienté course ; les pilotes se situant entre deux tailles doivent généralement prendre la taille supérieure en raison du contourage agressif des joueuses.
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 RPHA 11 Pro is a high-performance helmet designed for track and racing enthusiasts. Its sleek styling is not just visually appealing, but also engineered to optimize aerodynamics, reducing wind resistance and drag. Advanced engineering has gone into the development of this helmet, featuring a PIM+ shell for enhanced impact resistance and a three-layer cheekpad design for a comfortable fit. The helmet's ventilation system is a key feature, boasting a large air intake and exhaust system to keep riders cool and dry even during the most intense sessions. The RPHA 11 Pro also features a MIPS (Multi-directional Impact Protection System) for added protection against rotational forces. With its advanced safety technology and premium features, the HJC RPHA 11 Pro is the ultimate choice for riders who demand the best.
Key Highlights:
Rider Profile & Intended Use
Où acheter
| Revendeur | Prix | Availability | |
|---|---|---|---|
| Amazon (US) | Voir le prix en temps réel | Voir sur le site | Voir le prix → |
Historique et tendances des prix
ℹ️ Helmetsan est un moteur indépendant de sécurité et d’aide à la décision pour les motos. Lorsque vous consultez des prix ou achetez via des liens de revendeurs, Helmetsan peut percevoir une commission d’affiliation, sans frais supplémentaires pour vous.
Product Concept & Specifications
HJC (South Korea)Engineering & Biomechanical Safety Analysis
Le HJC RPHA 11 Pro offre une sécurité avancée grâce à sa coque PIM+, alliant légèreté, durabilité et résistance aux impacts. Sa forme de tête ovale intermédiaire garantit un ajustement précis et confortable, tandis que les canaux de ventilation sophistiqués favorisent la circulation de l'air pour maintenir le pilote au frais. Conçu pour la piste et la compétition, ce casque privilégie l'aérodynamisme et la performance, ce qui le rend idéal pour la conduite à haute vitesse.
The HJC RPHA 11 Pro Semi Flat Black is engineered as a high-integrity Track/Race protective system, utilizing a structural shell constructed from PIM+. 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 22.05, 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 DOT and ECE 22.05 standards
Meets DOT and ECE 22.05 standards
Regional Legality Guidance
Certification Documents & References
Interactive Size & Fit Finder
Le RPHA 11 Pro présente une forme de tête ovale intermédiaire. Il est connu pour son ajustement précis orienté course ; les pilotes se situant entre deux tailles doivent généralement prendre la taille supérieure en raison du contourage agressif des joueuses.
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 | 399.99 USD | In Stock | Official | 2024-05-22 |
| CA | 549.99 CAD | In Stock | Official | 2024-05-22 |
Compare & buy
Add this helmet to the comparison tool to see it side by side with others, or check current offers from trusted retailers.
User Reviews
Be the first to share your riding experience with this helmet.
Share your experience
No reviews yet. Be the first to share your experience with this helmet!
More from HJC
HJC RPHA 91 Track TC-5
HJC RPHA 91 Rouge Apex
HJC i10 Anthracite
HJC i10 Solid TC-1
HJC i10 Rouge Course
HJC V10 Track Red
Compatible Motorcycles for the HJC RPHA 11 Pro Semi Flat Black
Aerodynamically sculpted for high-velocity chin-on-tank tuck, negative lift, and wide track peripheral visibility.
Data Confidence & Verification Provenance
Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.