The HJC RPHA 31 is a medium open-face motorcycle helmet designed for riders who want advanced protection, refined aerodynamics, and everyday comfort. Manufactured by HJC and identified by manufacturer and vendor part number JA19NUS5XWHV, this solid white helmet uses a Premium Integrated Matrix (PIM) Evo shell with Carbon-Aramid Hybrid and natural fiber reinforcement. The multi-density EPS liner helps manage impact energy while supporting a comfortable, lightweight fit for touring, commuting, and extended road use.
Developed through wind-tunnel testing, the RPHA 31 shell is shaped to reduce air resistance, minimize turbulence, and improve stability at speed. Its ventilation system uses two intake vents and four exhaust vents to promote full front-to-back airflow. The integrated smoke-tinted sun visor includes an anti-fog coating and can be deployed with the bottom-positioned operating system. Multi-step adjustment lets riders position the visor closer to the face for personalized shade and glare control. The included HJ-39 shield is Pinlock 120XLT DKS467 ready, features an anti-scratch coating, and provides 99% ultraviolet protection.
The RPHA Premium Fit interior uses advanced antibacterial fabric with moisture-wicking and quick-drying performance. Removable, washable crown and cheek pads support easy maintenance, while 3D-contoured cheek pads and interchangeable sizing options help riders fine-tune the fit. Reflective materials improve visibility in low-light conditions, and the shield holder helps reduce noise and drag while keeping the visor secure. The helmet also accommodates second-generation SMART HJC Bluetooth communication systems, sold separately, for integrated rider communication and audio.
Designed for riders seeking a precise full face-level fit in an open-face configuration, the HJC RPHA 31 combines an elongated shell profile with extended chin EPS coverage. This medium helmet is suitable for compatible motorcycle and scooter applications where a properly fitted, certified helmet is required. Always confirm sizing, installation, and regional safety certification requirements before riding.
Features:
- Size: Medium
- Model: RPHA 31
- Color: Solid white
- Brand: HJC
- Manufacturer: HJC
- Manufacturer and vendor part number: JA19NUS5XWHV
- Shell construction: Premium Integrated Matrix (PIM) Evo with Carbon-Aramid Hybrid and natural fiber reinforcement
- Liner: Multi-density EPS for enhanced impact-energy management
- Aerodynamics: Wind-tunnel-developed shell reduces air resistance and helps improve stability
- Ventilation: Two intake vents and four exhaust vents provide front-to-back airflow
- Sun visor: Integrated smoke-tinted, anti-fog visor with multi-step adjustment
- Shield: HJ-39 Pinlock 120XLT DKS467 ready, anti-scratch coated, and provides 99% UV protection
- Interior: Antibacterial, moisture-wicking, quick-drying fabric
- Fit: Removable and washable crown and cheek pads with interchangeable cheek pad options
- Visibility: Reflective material supports improved low-light visibility
- Communication compatibility: Designed for second-generation SMART HJC Bluetooth communication systems, sold separately
- Fitment: Suitable for compatible motorcycle and scooter applications requiring a properly fitted open-face helmet