The HJC i11 is a full-face sport helmet for riders who want aerodynamic stability, effective airflow, and a secure race-influenced fit for street riding. Its Advanced Polycarbonate Composite shell and carefully developed interior balance lightweight comfort with the structure required for everyday and spirited riding.
Protection and shell
- Advanced Polycarbonate Composite shell developed with HJC CAD technology
- DOT and SNELL M2025D approved in XS through 2X-Large; 3X-Large through 5X-Large are DOT only
- Three shell sizes and four multi-density EPS liner sizes help optimize fit and weight distribution
- Emergency quick-release cheek pads support faster helmet removal by trained responders
Aerodynamics and ventilation
HJC developed the i11 with a race-inspired aerodynamic shell to reduce lift and drag and improve stability at speed. Its Advanced Channeling Ventilation System uses three intake ports and five exhaust outlets to move heat and humidity from front to back. Enlarged front and mouth intakes direct fresh air toward the shield and breathing area to help limit moisture buildup.
Shield and visibility
The HJ-38 shield system has a smoother, more secure ratchet and a cracked-open position that adds airflow at low speeds. The shield is anti-scratch, Pinlock ready, and provides 99% UV protection. A Pinlock insert is sold separately. The optional SHADE X photochromic shield adjusts its tint as light changes.
Comfort and communication
The 3D Contour Race Fit interior is designed for a stable, close fit. Moisture-wicking, quick-drying antibacterial liner fabric, removable and washable crown and cheek pads, and a glasses groove support comfort on longer rides. The interior is Bluetooth ready; communication equipment is sold separately.
Fit and sizing
Measure around your head about 2.5 cm above the eyebrows and compare the measurement with the chart. Helmet size charts are a starting point. A proper fit should feel snug and even, with cheek pads contacting the cheeks and no loose movement when you gently rotate the helmet.
| HJC size |
Head circumference |
| X-Small |
54 to 55 cm |
| Small |
55 to 56 cm |
| Medium |
57 to 58 cm |
| Large |
58 to 59 cm |
| X-Large |
60 to 61 cm |
| 2X-Large |
62 to 63 cm |
| 3X-Large |
64 to 65 cm |
| 4X-Large |
66 to 67 cm |
| 5X-Large |
68 to 69 cm |
Colors
Choose Matte Black, Gloss Black, Nardo Gray, or White. HJC identifies these finishes as Semi Flat Black, Metal Black, N Gray, and Pearl White.
Warranty
HJC covers manufacturing defects for up to three years from the date of purchase or five years from the date of manufacture, whichever comes first.
What has improved
Compared with the i10 platform, HJC describes the i11 as having a newly developed aerodynamic shell for improved stability at speed, upgraded SNELL M2025D approval, three shell sizes with four multi-density EPS liners, and the HJ-38 visor system.
