The HJC RPHA 31 Dereen is an open-face helmet with a Premium Integrated Matrix (PIM) EVO shell, multi-density EPS, and an adjustable smoke-tinted sun visor. Its wind-tunnel-tested aerodynamic design is intended to reduce noise, drag, and wind turbulence.

Shell and Ventilation

• PIM EVO reinforcement materials include carbon-aramid hybrid and natural fiber, designed for shock resistance, comfort, and light weight.
• Multi-density EPS liner.
• Aerodynamic shell designed to reduce air resistance and provide stability at high speed.
• Front-to-back airflow through two intakes and four exhausts.
• Elongated shell and extended chin EPS provide an encompassing fit; this remains an open-face helmet.

Shield and Sun Visor

• HJ-39 shield provides 99% UV protection and an anti-scratch coating.
• Shield is ready for Pinlock® 120XLT® DKS467.
• Dynamic Multi-Step sun visor has a smoke tint and anti-fog coating.
• Bottom-positioned sun visor operation system.
• Multi-step adjustment positions the sun visor up to 10 mm closer to the face.
• Shield/visor holder is designed to reduce noise and drag, hold the visor securely, and limit incoming wind turbulence.
• Deployable visor deflector.

RPHA Premium Fit Interior

• Antibacterial fabric with moisture-wicking and quick-drying properties.
• Removable, washable crown and cheek pads.
• 3D-contoured cheek pads.
• Reflective material.
• Cheek pads are interchangeable across all sizes for a customized fit.

Communication Compatibility

Compatible with second-generation SMART HJC Bluetooth communication systems, sold separately.

Specifications

• Brand: HJC
• Model: RPHA 31
• Type: Open-face helmet
• Design: Dereen
• Shell: PIM EVO
• Impact liner: Multi-density EPS
• Shield: HJ-39

Color and Size Options

• Colors: Gray/Black, Orange/Black, Red/White/Blue
• Sizes: XS, S, M, L, XL, 2XL

Select your preferred color and size from the available variants.