The HJC i31 Open Face Helmet presents a compelling blend of modern design and practical features, tailored for riders who appreciate both style and functionality.
Building upon the foundation of its predecessor, the i30, the i31 introduces enhancements that cater to the needs of contemporary motorcyclists.
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Shell and Construction
At the core of the i31 is its Advanced Polycarbonate Composite Shell, engineered to offer a lightweight yet robust protective barrier. This construction ensures that the helmet remains comfortable during extended rides without compromising on safety.
The aerodynamic 3D shield design not only contributes to the helmet’s sleek appearance but also aids in reducing wind resistance and noise, enhancing the overall riding experience.
Ventilation System
Effective airflow is crucial for rider comfort, and the i31 addresses this with its Advanced Channeling Ventilation System (ACS).
This system incorporates one intake and two exhaust vents, facilitating consistent air circulation throughout the helmet. Such a design ensures that heat and humidity are efficiently expelled, keeping the rider cool and focused.



Visor and Sun Shield
Visibility is paramount, and the i31 excels in this domain. It comes equipped with a Pinlock®-Ready HJ-43 face shield, designed to accommodate anti-fog inserts, ensuring clear vision across varying weather conditions.
Complementing this is the integrated HJ-V12 dark smoke sun shield, which can be easily deployed to counteract glare, enhancing visibility during bright conditions.
Interior Comfort
The interior of the i31 is lined with HJC’s MultiCool™ moisture-wicking and quick-dry fabric. This material not only provides a comfortable fit but also ensures that sweat and moisture are effectively managed, maintaining a pleasant internal environment.
Additionally, the crown and cheek pads are both removable and washable, allowing riders to maintain hygiene with ease. For those who wear glasses, the helmet features dedicated grooves, ensuring a snug fit without discomfort.
Safety Standards
Safety is a non-negotiable aspect of any helmet, and the i31 meets this criterion by adhering to the DOT FMVSS 218 standard.
This certification encompasses rigorous testing for energy attenuation, penetration resistance, and chin strap structural integrity, ensuring that the helmet provides reliable protection in various scenarios.


Additional Features
The i31 incorporates the Rapidfire™ Shield Replacement System, allowing for swift and tool-free visor changes—a practical feature for riders who frequently adapt to changing light conditions.
The helmet’s micro buckle retention system ensures a secure fit while facilitating easy fastening and release.
Final Thoughts for the HJC i31 Helmet
In essence, the HJC i31 Open Face Helmet stands as a testament to thoughtful design and rider-centric features.
Its combination of safety, comfort, and convenience makes it a worthy consideration for those seeking a reliable open-face helmet that doesn’t compromise on style or functionality.