$669.99 USD

The HJC RPHA 12N Carbon Keres Helmet combines lightweight carbon construction with aerodynamic performance for street and track riding. Its Premium Integrated Matrix EVO shell is designed to provide a strong, lightweight structure, while the aerodynamic shell shape and optimized rear spoiler help reduce lift and drag. The HJ-42 face shield, advanced ventilation system, removable interior, and emergency cheek pad release provide practical features for performance-focused riders.

Premium Integrated Matrix EVO (PIM EVO) carbon construction
Lightweight carbon shell designed for strength and comfort
Four unique shell sizes optimize fit across the size range
Aerodynamic shell shape helps reduce lift and drag
Optimized rear spoiler improves aerodynamic stability
HJ-42 race-style face shield
Pinlock® anti-fog lens included
Clear and dark smoke face shields included
Two-way pivot ratchet system improves face shield sealing
Four intake vents and three exhaust vents promote airflow
Enlarged front intake helps maximize defogging
Fully removable interior
Interchangeable cheek pads across all helmet sizes
Emergency cheek pad release system
Enlarged speaker pockets for communication systems
Double D-ring chinstrap
DOT FMVSS No. 218 certified
ECE 22.06 certified
Approximate weight: 3.315 lb. / 1521 g based on a Medium solid-color helmet

HJC RPHA 12N Carbon Helmet Size Chart

Size	Head	Hat Size	Head Circumference
XS	54-55 cm	6 3/4-6 7/8	21 1/4-21 5/8 in.
S	55-56 cm	6 7/8-7	21 5/8-22 in.
M	57-58 cm	7 1/8-7 1/4	22 1/4-22 7/8 in.
L	58-59 cm	7 1/4-7 3/8	22 7/8-23 5/8 in.
XL	60-61 cm	7 1/2-7 5/8	23 5/8-24 in.
2XL	62-63 cm	7 3/4-7 7/8	24 3/8-24 3/4 in.

How to Measure: Measure around the fullest part of your head, approximately 1 inch above the eyebrows and ears. Keep the measuring tape level and comfortably snug without compressing the head. Compare the measurement with the size chart to determine the ap

Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.

We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.

Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.

Helmet Size Convention Chart

The size chart is for reference. Always try the helmet on and follow the instructions for a proper fit.

Size	CM	Hat Size	Inches
3XS	50–51	6 1/4 – 6 3/8	19 3/4 – 20 1/8
2XS	52–53	6 1/2 – 6 5/8	20 1/2 – 20 7/8
XS	54–55	6 3/4 – 6 7/8	21 1/4 – 21 5/8
S	55–56	6 7/8 – 7	21 5/8 – 22
M	57–58	7 1/8 – 7 1/4	22 1/4 – 22 7/8
L	58–59	7 1/4 – 7 3/8	23 1/4 – 23 5/8
XL	60–61	7 1/2 – 7 5/8	23 5/8 – 24
2XL	62–63	7 3/4 – 7 7/8	24 3/8 – 24 3/4
3XL	64–65	8 – 8 1/8	25 1/8 – 25 1/2
4XL	66–67	8 1/4 – 8 3/8	26 – 26 3/8
5XL	68–69	8 1/2 – 8 5/8	26 3/4 – 27 1/8

50 YEARS OF CONTINUOUS CHALLENGES

100 YEARS TO PERFECTION

Explore All HJC Products

With an illustrious legacy dating back to 1971, HJC has cemented its reputation as a trailblazer in the realm of motorcycle helmet manufacturing. Throughout its distinguished history, HJC has remained unwavering in its commitment to producing helmets of unrivaled quality and craftsmanship.

Frequently asked questions

Yes. Most HJC helmets are DOT-approved, and many premium models (like the RPHA series) also carry ECE 22.06 certification, ensuring high safety standards for street and track use.

Measure your head circumference with a soft tape measure above your eyebrows. Compare the measurement to the HJC size chart for the specific model you're buying, as fit may vary between product lines.

Absolutely. HJC offers multiple replacement visors, including clear, smoke, mirrored, and pinlock-ready options. Most helmets feature a tool-less quick-release system for easy swaps.

Use a mild soap and warm water for the shell. Interiors on most HJC models are removable and washable, but avoid harsh chemicals and do not use heat to dry the liners.

Yes. Many modern HJC helmets, especially the RPHA and i-series, are Bluetooth-ready and compatible with systems like Sena, Cardo, or HJC’s own SMART Bluetooth units.