HJC · RPHA 12N · Full Face
The HJC RPHA 12N Respon is a full-face motorcycle helmet built for riders who prioritize speed-focused aerodynamics, steady airflow, and stability for street or track use. Its shell shape is tuned to help reduce air drag and noise, supporting a composed feel at higher speeds.
This graphic is offered in Respon MC-2, Respon MC-27SF, and Respon MC-5, with sizing from X-Small through XX-Large. Key highlights include the HJ-42 curved shield with a two-way pivot ratchet system, a ventilation layout with 4 intakes and 3 exhausts, and a fully removable interior with all size interchangeable cheek pads to help dial in fit. It is listed at 3.315 lbs / 1521 grams (approx, based on size medium) and is DOT FMVSS No. 218 and ECE 22.06 approved.
Construction
The RPHA 12N uses an aerodynamic shell structure made from high-performance materials infused with epoxy resin and fiber tissue. It also incorporates a Premium Integrated Matrix (P.I.M.) shell design. For situations where quick removal matters, the helmet includes an emergency kit concept with removable cheek pads and an emergency pull tab for assisted removal.
Shield
An HJ-42 curved shield and ratchet system is designed to help reduce air drag and noise. The visor is Pinlock-ready, features 99% UV protection, and has an anti-scratch coating for durability. A two-way pivot ratchet system supports smooth operation and improved sealing to help manage wind and weather while riding.
Aerodynamics
The RPHA 12N features an aerodynamic shell structure, designed for high-speed stability and extreme performance. Constructed with high-performance materials infused with epoxy resin and fiber tissue, it’s inspired by aircraft and racing technology for optimal durability and reduced drag.
Aerodynamics
The RPHA 12N is shaped around high-speed stability with an aerodynamic shell structure aimed at extreme performance. HJC describes the construction as using high-performance materials infused with epoxy resin and fiber tissue, with inspiration drawn from aircraft and racing technology. The overall design focus is to help manage air drag and helmet noise, supporting a smoother ride feel when speeds climb on the street or when pushing pace at the track.
Comfort
Inside, the RPHA 12N is built around a fully removable interior to make cleaning and upkeep easier over time. Fit can be fine-tuned using all size interchangeable cheek pads, allowing riders to adjust contact and hold without changing helmet size. For clarity in mixed conditions, the enlarged front intake is designed to support defogging, pairing comfort-focused interior features with airflow management for day-to-day street rides or track sessions.
| Maximum air intake | 4 intakes and 3 exhausts |
|---|---|
| Certifications | DOT FMVSS No. 218 and ECE 22.06 approved |
| Weight | 3.315 lbs / 1521 grams (approx, based on size medium) |
RPHA 12 Helmet Manual (PDF) HJC Helmet Size Chart
Provided by HJC. Opens in a new tab.
