RPHA 31
![](http://hjchelmets.us/cdn/shop/files/black_RPHA31-solid-blk-top.png?v=1687935668&width=500)
![](http://hjchelmets.us/cdn/shop/files/black_RPHA31-solid-blk-bty.png?v=1687935667&width=500)
![](http://hjchelmets.us/cdn/shop/files/black_RPHA31-solid-blk-side.png?v=1687935671&width=500)
![](http://hjchelmets.us/cdn/shop/files/black_RPHA31-solid-blk-profile.png?v=1687935670&width=500)
![](http://hjchelmets.us/cdn/shop/files/black_RPHA31-solid-blk-rear.png?v=1687935668&width=500)
The RPHA 31 premium open-face model benefits from the Premium Integrated Matrix (PIM) Evo shell and multi-density EPS, excelling in augmenting shock resistance and furnishing optimal protection. Methodically designed, it orchestrates a serenely quiet and aerodynamically refined ride, an outcome achieved through meticulous wind tunnel trials. Notably, the sun-visor-equipped RPHA 31 effectively diminishes noise levels and mitigates wind turbulence.
Seamlessly aligning with technological progress, the RPHA 31 accommodates the second-generation SMART HJC Bluetooth communication systems allowing an undistracted focus on the road ahead.
![](http://hjchelmets.us/cdn/shop/files/HJC_RPHA31_4037S.jpg?crop=center&height=450&v=1690836269)
![](http://hjchelmets.us/cdn/shop/files/rpha31-g-02.jpg?crop=center&height=450&v=1687935674)
![](http://hjchelmets.us/cdn/shop/files/rpha31-g-01.jpg?crop=center&height=450&v=1687935672)
![](http://hjchelmets.us/cdn/shop/files/rpha31-g-03.jpg?crop=center&height=450&v=1687935671)
![](http://hjchelmets.us/cdn/shop/files/rpha31-g-04.jpg?crop=center&height=450&v=1687935671)
TECHNICAL FEATURES
![](http://hjchelmets.us/cdn/shop/files/certificates.jpg?crop=center&height=800&v=1687935574&width=800)
![](http://hjchelmets.us/cdn/shop/files/certificates.jpg?crop=center&height=550&v=1687935574&width=900)
![](http://hjchelmets.us/cdn/shop/files/RPHA91-pim-evo-shell.jpg?crop=center&height=800&v=1687935665&width=800)
![](http://hjchelmets.us/cdn/shop/files/RPHA91-pim-evo-shell.jpg?crop=center&height=550&v=1687935665&width=900)
![](http://hjchelmets.us/cdn/shop/files/RPHA31-sun-sheild-en.jpg?crop=center&height=800&v=1687936059&width=800)
![](http://hjchelmets.us/cdn/shop/files/RPHA31-sun-sheild-en.jpg?crop=center&height=550&v=1687936059&width=900)
Advanced anti-bacterial fabric provides enhanced moisture-wicking and quick-drying function.
3D contour cheek pads / Reflective material for safety.
Interchangeable cheek pads throughout all sizes for custom fit.
![](http://hjchelmets.us/cdn/shop/files/RPHA-Interior.jpg?crop=center&height=800&v=1687935653&width=800)
![](http://hjchelmets.us/cdn/shop/files/RPHA-Interior.jpg?crop=center&height=550&v=1687935653&width=900)
Advanced anti-bacterial fabric provides enhanced moisture-wicking and quick-drying function.
3D contour cheek pads / Reflective material for safety.
Interchangeable cheek pads throughout all sizes for custom fit.
![](http://hjchelmets.us/cdn/shop/files/RPHA31-visordeflector.jpg?crop=center&height=800&v=1687935854&width=800)
![](http://hjchelmets.us/cdn/shop/files/RPHA31-visordeflector.jpg?crop=center&height=550&v=1687935854&width=900)
![](http://hjchelmets.us/cdn/shop/files/SMART-2nd.jpg?crop=center&height=800&v=1687935655&width=800)
![](http://hjchelmets.us/cdn/shop/files/SMART-2nd.jpg?crop=center&height=550&v=1687935655&width=900)
![](http://hjchelmets.us/cdn/shop/files/RPHA1-WARRANTY-R_7cef2f1e-db31-445a-934a-43f3aef7b24f.jpg?crop=center&height=800&v=1687935654&width=800)
![](http://hjchelmets.us/cdn/shop/files/RPHA1-WARRANTY-R_7cef2f1e-db31-445a-934a-43f3aef7b24f.jpg?crop=center&height=550&v=1687935654&width=900)