The HJC RPHA 31 Dereen is a premium open-face motorcycle helmet designed for riders who want advanced protection, reduced wind noise, and a refined fit. This Large-size helmet features HJC’s Premium Integrated Matrix EVO (PIM EVO) shell, constructed with reinforcement materials including carbon-aramid hybrid and natural fibers. The shell is engineered to improve shock resistance while maintaining a comfortable, lightweight feel. Its aerodynamic profile was developed through wind-tunnel testing to help reduce air resistance, improve stability at highway speeds, and minimize turbulence.
For clear vision in changing conditions, the HJC RPHA 31 includes a Pinlock 120XLT DKS467-ready HJ-39 face shield with anti-scratch treatment and 99% UV protection. The integrated smoke-tinted sun visor uses an anti-fog coating and deploys through a convenient bottom-positioned mechanism. A multi-step adjustment system allows the visor to move up to 10 mm closer to the rider’s face for customized shading. The shield holder helps reduce noise and drag while keeping the visor securely positioned.
Ventilation is provided by two intake vents and four exhaust vents for effective 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 available sizes support a personalized fit. Reflective materials enhance visibility in low-light conditions. The elongated shell and extended chin EPS provide a more encompassing fit approaching full-face coverage. The helmet is also compatible with second-generation SMART HJC Bluetooth communication systems, sold separately.
Fitment: The HJC RPHA 31 Dereen is intended for motorcycle and powersports riders seeking an open-face helmet with integrated sun protection and premium ventilation. This Large model is identified by manufacturer part number JA19NUS62H6V and vendor part number JA19NUS62H6V.
Features:
- Size: Large
- Model: RPHA 31 Dereen MC6HSF
- Brand: HJC
- Manufacturer Part Number: JA19NUS62H6V
- Vendor Part Number: JA19NUS62H6V
- Shell: Premium Integrated Matrix EVO construction with carbon-aramid hybrid and natural fiber reinforcement
- Protection: Multi-density EPS designed to improve impact absorption
- Aerodynamics: Wind-tunnel-developed shell helps reduce drag and improve high-speed stability
- Ventilation: Two intake vents and four exhaust vents provide front-to-back airflow
- Face 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
- Interior: Moisture-wicking, quick-drying antibacterial fabric with removable and washable crown and cheek pads
- Fit: 3D-contoured and interchangeable cheek pads support customized comfort
- Visibility: Reflective material helps improve visibility in low-light conditions
- Connectivity: Compatible with second-generation SMART HJC Bluetooth communication systems, sold separately