HJC · RPHA 12N · Full Face
The HJC RPHA 12N Kate is a full-face motorcycle helmet featuring the Kate graphic in Kate MC-28 and Kate MC-48 colorways. Built around HJC’s PIM EVO shell design and an aerodynamic shell structure, it’s shaped for high-speed stability with an emphasis on reducing air drag and noise.
For airflow, the RPHA 12N uses an advanced ventilation layout with 4 intakes and 3 exhausts, including an enlarged front intake aimed at maximum defogging. Up front, the helmet uses the HJ-42 curved shield and ratchet system, with a Pinlock-ready visor design for clear vision across changing conditions, plus a fully removable interior and interchangeable cheek pads to help dial in fit and comfort.
Construction
The RPHA 12N uses a Premium Integrated Matrix (P.I.M.) shell concept as part of its lightweight, durable construction. It is approved to DOT FMVSS No. 218 and ECE 22.06 standards, and includes an emergency pull tab system with removable cheek pads to support quick and secure removal when needed.
Shield
Equipped with an HJ-42 curved shield and a two-way pivot ratchet system, the RPHA 12N is designed to help reduce air drag and noise while promoting smooth shield movement and improved sealing.
Ventilation
An advanced ventilation system routes air through 4 intake vents and 3 exhaust vents to maintain consistent airflow at speed. The enlarged front intake is designed to push more air across the shield area for maximum defogging, supporting comfort across a wide range of riding conditions.
Construction
The RPHA 12N’s shell profile focuses on stability at higher speeds, using an aerodynamic structure intended to manage airflow and reduce drag. HJC describes the construction as using high-performance materials infused with epoxy resin and fiber tissue, drawing inspiration from aircraft and racing technology to balance durability with a streamlined exterior shape.
Comfort
Inside, the RPHA 12N features a fully removable interior to support routine cleaning and long-term comfort. Cheek pads are interchangeable across all sizes, which allows riders to fine-tune fit without changing helmet size. The emergency cheek pad release design is integrated to help make removal more manageable when it matters.
| 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.
