The HJC RPHA 31 is a premium open-face motorcycle helmet designed for riders who want dependable protection, reduced wind noise, and long-distance comfort. This Solid N Gray model in Large uses HJC’s Premium Integrated Matrix (PIM) Evo shell, combining Carbon-Aramid Hybrid and natural fiber reinforcement materials for enhanced shock resistance, lightness, and comfort. The multi-density EPS liner helps manage impact energy while the aerodynamic shell design reduces air resistance and improves stability at highway speeds.
Wind tunnel development supports a quieter, more refined ride, while the full front-to-back ventilation system uses two intake vents and four exhaust vents to promote continuous airflow. The integrated smoke-tinted sun visor features an anti-fog coating and a bottom-mounted operating system for quick deployment. Its multi-step adjustment allows the visor to move closer to the rider’s face for personalized shading. The included Pinlock® 120XLT® DKS467-ready HJ-39 shield provides 99% UV protection and includes an anti-scratch coating. The shield holder helps reduce noise and drag while keeping the visor securely positioned.
The RPHA Premium Fit interior uses advanced antibacterial fabric with moisture-wicking and quick-drying performance. Removable, washable crown and cheek pads make maintenance convenient, while 3D-contoured cheek pads, reflective material, and interchangeable cheek pads across sizes support a secure, customized fit. The elongated shell and extended chin EPS create a fuller face-level fit than many traditional open-face designs. The helmet also accommodates second-generation SMART HJC Bluetooth communication systems, sold separately, for integrated rider communication. Manufacturer part number and vendor part number: JA19NUS6XGNV. Brand: HJC. Model: RPHA 31. Size: Large.
Features:
- PIM Evo Shell: Uses Carbon-Aramid Hybrid and natural fiber reinforcement for enhanced shock resistance, comfort, and reduced weight.
- Multi-Density EPS: Helps absorb and manage impact energy for dependable rider protection.
- Aerodynamic Shell: Developed through wind tunnel testing to reduce air resistance, wind turbulence, and high-speed instability.
- Ventilation System: Two intake vents and four exhaust vents provide full front-to-back airflow.
- HJ-39 Shield: Pinlock® 120XLT® DKS467-ready shield offers 99% UV protection and an anti-scratch coating.
- Integrated Sun Visor: Smoke-tinted, anti-fog visor deploys through a convenient bottom-mounted mechanism.
- Adjustable Sun Visor: Multi-step positioning allows the visor to move closer to the face for customized coverage.
- Premium Fit Interior: Antibacterial, moisture-wicking, quick-drying fabric improves comfort during extended rides.
- Removable Liners: Crown and cheek pads are removable and washable for easier cleaning.
- Custom Fit: Interchangeable 3D-contoured cheek pads support a personalized fit across helmet sizes.
- Reflective Details: Reflective material improves visibility in low-light riding conditions.
- Bluetooth Ready: Compatible with second-generation SMART HJC communication systems, sold separately.
- Fitment: Large-size open-face motorcycle helmet for riders seeking a protective, quiet, and comfort-focused fit.
- Brand and Part Number: HJC RPHA 31, manufacturer and vendor part number JA19NUS6XGNV.