The HJC RPHA 31 is a medium open-face motorcycle helmet designed for riders who want advanced protection, reduced wind turbulence, and a comfortable fit for daily riding or extended road trips. Its Premium Integrated Matrix (PIM) Evo shell combines carbon-aramid hybrid and natural fiber reinforcement materials to provide strong shock resistance while maintaining a lightweight, comfortable design. The aerodynamic shell was refined through wind tunnel testing to reduce air resistance and improve stability at highway speeds.
This HJC helmet includes a Pinlock® 120XLT® DKS467-ready HJ-39 shield with an anti-scratch coating and 99% UV protection. The integrated smoke-tinted sun visor uses an anti-fog coating and deploys through a convenient bottom-mounted mechanism. Its multi-step adjustment system allows the visor to move closer to the rider’s face for more personalized shading and improved vision control. The shield holder helps reduce noise and drag while securing the visor firmly in place.
Ventilation is provided by two intake vents and four exhaust vents to promote front-to-back airflow. The RPHA Premium Fit interior uses advanced antibacterial fabric with moisture-wicking and quick-drying properties. Removable, washable crown and cheek pads, 3D-contoured cheek pads, and interchangeable cheek pads across helmet sizes help riders achieve a more precise fit. Reflective material adds visibility in low-light conditions. The extended shell and chin EPS provide fuller face-level coverage than a conventional open-face design.
The HJC RPHA 31 accommodates second-generation SMART HJC Bluetooth communication systems, sold separately, for integrated rider communication and audio functionality. Finished in matte black, this medium helmet is manufactured by HJC and identified by manufacturer and vendor part number JA19NUS5XMBV. It is designed to fit motorcycle riders seeking a refined open-face helmet with integrated sun protection, modern airflow management, and premium interior comfort.
Features:
- Size: Medium
- Model: RPHA 31
- Color: Matte Black
- Brand: HJC
- Manufacturer: HJC
- Manufacturer Part Number: JA19NUS5XMBV
- Vendor Part Number: JA19NUS5XMBV
- Shell: Premium Integrated Matrix (PIM) Evo construction with carbon-aramid hybrid and natural fiber reinforcement
- Protection: Multi-density EPS and extended chin EPS for enhanced impact management and face-level coverage
- Shield: Pinlock® 120XLT® DKS467-ready HJ-39 shield with anti-scratch coating and 99% UV protection
- Sun Visor: Integrated smoke-tinted, anti-fog visor with multi-step adjustment
- Ventilation: Two intake vents and four exhaust vents for front-to-back airflow
- Interior: Removable and washable antibacterial crown and cheek pads with moisture-wicking, quick-drying fabric
- Fit: Interchangeable 3D-contoured cheek pads for personalized comfort
- Visibility: Reflective material improves rider visibility in low-light conditions
- Communication: Compatible with second-generation SMART HJC Bluetooth communication systems, sold separately
- Fitment: Designed for motorcycle riders seeking an aerodynamic, open-face helmet for street and touring use