Modular convenience for everyday rides and longer miles
The HJC F100 Solid is a fiberglass modular motorcycle helmet for commuters, cruiser riders, and touring riders who want flexible face coverage without giving up everyday comfort. Its rotating chin bar converts between full-face and open-face configurations, while a built-in sun visor helps you adapt to changing light.
Shell, protection, and airflow
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Advanced Fiberglass Composite shell: layered fiberglass construction balances impact resistance with manageable weight.
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DOT compliant: meets or exceeds DOT FMVSS 218 requirements.
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Wind-tunnel-developed profile: shaped to reduce drag and lift for a more settled feel on longer rides.
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ACS ventilation: three intakes and five outlets move air through the helmet. Front and mouth vents direct fresh air toward the shield and breathing area.
Shield and adjustable sun visor
The Pinlock-ready HJ-45 shield has an anti-scratch coating and provides 99% UV protection. Its ratchet mechanism simplifies shield changes, while the shield lock helps keep it securely closed.
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HJ-45A shield: fits X-Small, Small, and Medium helmets.
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HJ-45B shield: fits Large, X-Large, and 2X-Large helmets.
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HJ-V12 dark smoke sun visor: built-in shade with up to 8 mm of vertical adjustment.
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Pinlock lens included: helps control shield fogging. Match replacement inserts to the correct A or B shield.
Comfort and communication readiness
The contoured interior provides a close fit. Removable, washable cheek pads and a moisture-wicking, quick-drying center liner make routine cleaning easier. Eyeglass grooves accommodate spectacle arms.
Speaker pockets provide space for a compatible Bluetooth headset. A communication system is sold separately; confirm the mounting arrangement for your chosen unit before installation.
Included accessories
- Pinlock anti-fog lens
- Chin curtain
- Breath deflector
Colors and finishes
Matte Black, Titanium, and Metallic Blue correspond to HJC's Semi-Flat Black, Semi-Flat Titanium, and Semi-Flat Metallic Blue finishes. Gloss Black, White, and Nardo Grey complete the solid-color selection.
Size chart and fit guidance
Head-circumference measurements below follow the HJC chart linked to Helmet House's F100 listing.
| Size |
Head circumference |
| X-Small |
53 to 54 cm |
| Small |
55 to 56 cm |
| Medium |
57 to 58 cm |
| Large |
59 to 60 cm |
| X-Large |
61 to 62 cm |
| 2X-Large |
63 to 64 cm |
Measure horizontally around the widest part of your head, approximately one inch above your eyebrows. Use the chart as a starting point, then try the helmet on. Look for snug, even contact without painful pressure points. Visit Eagle Leather for help checking fit. Follow the owner's manual for chin-bar operation and fastening.
Manufacturer warranty
HJC covers manufacturing defects for three years from purchase or five years from manufacture, whichever comes first, subject to its warranty terms.
