Introduction
This manual provides essential information for the safe and effective use, maintenance, and care of your HJC i10 Star Full Face Motorcycle Helmet. Please read this manual thoroughly before using your helmet and retain it for future reference. Proper use and maintenance are crucial for ensuring the helmet's protective capabilities.

Image: Front-side view of the HJC i10 Star Full Face Motorcycle Helmet. This image displays the helmet's overall shape, the clear HJ-31 Pinlock ready shield, and visible ventilation points on the chin bar and forehead.
Safety Information
Your HJC i10 helmet is designed to provide significant protection. Adherence to safety guidelines is paramount.
- Certification: This helmet meets or exceeds U.S. Department of Transportation (DOT) FMVSS No. 218 standards and Snell M2020. These certifications ensure the helmet has passed rigorous impact and penetration tests.
- Proper Fit: A helmet must fit snugly and comfortably. An improperly fitted helmet can compromise its protective function. Refer to the fitting guide (if provided separately) or consult a professional for proper sizing.
- Damage Inspection: Always inspect your helmet for any signs of damage before each ride. Do not use a helmet that has been involved in an impact, even if visible damage is not apparent. The protective materials may be compromised.
- Chemical Exposure: Avoid exposing the helmet to petroleum products, cleaning fluids, paints, or adhesives, as these can damage the shell and liner materials, reducing protective capabilities.
- Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Setup and Initial Use
Helmet Fitting
Ensure the helmet fits securely on your head. It should be snug around your cheeks and crown without causing pressure points. The chin strap must be fastened correctly and tightly under your chin.
Visor Installation and Adjustment
The HJ-31 Pinlock ready shield provides 99% UV protection. If installing a Pinlock anti-fog insert (sold separately), follow the instructions provided with the insert. Ensure the shield operates smoothly and latches securely in both open and closed positions.
Bluetooth Communication System Integration
The i10 helmet is designed for seamless integration with Smart HJC Bluetooth communication systems (20B and 10B, sold separately). Refer to the specific instructions provided with your Smart HJC system for installation and pairing procedures.
Operating Instructions
Ventilation System
The Advanced Channeling Ventilation System is designed to maximize airflow, expelling heat and humidity. Locate the intake vents on the front of the helmet (chin and forehead) and exhaust vents at the rear. Adjust these vents as needed to control airflow and maintain comfort during your ride.
Visor Operation
The HJ-31 shield offers a large field of view and smooth operation. To open or close the visor, use the tab located at the bottom center. Ensure the visor is fully closed when riding to protect against wind, debris, and impacts. Optional mirrored shields are available (sold separately).
Maintenance
Interior Cleaning
The MultiCool interior features removable and washable crown and cheek pads. To clean:
- Carefully remove the crown and cheek pads from the helmet.
- Hand wash the pads in lukewarm water with a mild soap or helmet-specific cleaner.
- Rinse thoroughly and allow to air dry completely before re-installing. Do not machine wash or tumble dry.
Exterior Cleaning
Clean the helmet's exterior shell with a soft cloth and mild soap and water. Avoid abrasive cleaners or solvents. For the HJ-31 shield, use a soft, damp cloth and clean water. Do not use harsh chemicals or paper towels, which can scratch the surface. Allow to air dry.
Storage
Store your helmet in a cool, dry place away from direct sunlight and extreme temperatures. Use a helmet bag to protect it from scratches and dust.
Troubleshooting
This section addresses common issues you might encounter with your HJC i10 helmet.
- Visor Fogging: Ensure the Pinlock insert (if installed) is properly seated. Adjust ventilation to increase airflow. Consider using anti-fog treatments if fogging persists without a Pinlock.
- Excessive Noise: Check that the visor is fully closed and sealed. Ensure all vents are properly adjusted. Wind noise can vary based on motorcycle type, riding position, and external conditions.
- Discomfort/Pressure Points: Re-evaluate helmet fit. If discomfort persists, the helmet size or shape may not be suitable for your head. Consult a professional for assistance.
- Bluetooth System Issues: Refer to the specific user manual for your Smart HJC Bluetooth communication system for troubleshooting pairing, connection, or audio problems.
Specifications
| Model | i10 Star Full Face Motorcycle Helmet |
| Brand | HJC |
| Certifications | DOT FMVSS No. 218, Snell M2020 |
| Shell Material | Polycarbonate (PC) |
| Visor Type | HJ-31 Pinlock Ready Shield (99% UV protection) |
| Interior | MultiCool, moisture-wicking, removable & washable |
| Ventilation | Advanced Channeling Ventilation System |
| Bluetooth Compatibility | Smart HJC 20B & 10B (systems sold separately) |
| Approx. Item Weight | 3.46 Pounds (1.57 kg) |
| UPC | 190501308283 |
Warranty and Support
For warranty information, product support, or service inquiries, please refer to the official HJC website or contact HJC customer service directly. Retain your proof of purchase for warranty claims.
Manufacturer: HJC Helmets
Website: Visit the HJC Store on Amazon (for general brand information)