The HJC RPHA 31 is an open-face helmet designed with a Premium Integrated Matrix (PIM) Evo shell and multi-density EPS to support shock-resistant performance. Its aerodynamic shell shape is refined through wind tunnel testing to reduce air resistance, improve stability at high speed, and help create a quieter ride.

A Pinlock 120XLT DKS467-ready HJ-39 shield provides 99% UV protection and has an anti-scratch coating. The integrated smoke-tinted sun visor features an anti-fog coating and a bottom-positioned operating system for quick deployment. Its multi-step adjustment allows the visor to be positioned closer to the face for personalized shading and comfort.

Front-to-back airflow is supported by two intakes and four exhausts. The RPHA Premium Fit interior uses advanced antibacterial fabric with moisture-wicking and quick-drying properties. Removable, washable crown and cheek pads, 3D contour cheek pads, and interchangeable cheek pads across all sizes support a customizable fit.

Reflective material adds visibility, while the shield holder helps reduce noise and drag forces and holds the visor securely. The RPHA 31 also accommodates second-generation SMART HJC Bluetooth communication systems, sold separately. This matte black helmet is available in size XS and carries the HJC part number JA19NUS3XMBV.

Features:

• PIM Evo Shell: Uses Premium Integrated Matrix construction with Carbon-Aramid Hybrid and natural fiber reinforcement materials for shock-resistant performance, comfort, and lightness.
• Aerodynamic Shell: Designed to reduce air resistance and provide stability at high speed.
• Ventilation: Provides full front-to-back airflow through two intakes and four exhausts.
• HJ-39 Shield: Pinlock 120XLT DKS467-ready shield with 99% UV protection and an anti-scratch coating.
• Integrated Sun Visor: Smoke-tinted, anti-fog sun visor with bottom-positioned operation and multi-step adjustment.
• Interior Fabric: Advanced antibacterial fabric provides moisture-wicking and quick-drying properties.
• Removable Interior: Crown and cheek pads are removable and washable.
• Customizable Fit: 3D contour cheek pads and interchangeable cheek pads across all sizes.
• Reflective Material: Adds reflective detailing to the helmet.
• Bluetooth Ready: Accommodates second-generation SMART HJC Bluetooth communication systems, sold separately.
• Color and Size: Solid matte black finish in size XS.