HJC
HJC F100 Bios MC5SF Black
The HJC F100 Bios MC5SF Black combines HJC's rotational modular platform with a dark, understated Bios graphic. It is aimed at touring and everyday riders who value full-face coverage, open-face versatility when appropriate, and a refined black-led finish.
Who Is This Helmet For?
The F100 is for road riders who like the protective feel of a full-face helmet but also value the convenience of a rotational chin bar. Its aerodynamic shell, adjustable internal sun shield, glasses-friendly interior and washable comfort lining make it especially relevant to commuters, tourers and riders who spend long periods in the helmet.
Key Benefits
- Rotational modular versatility: HJC's advanced rotation system allows the helmet to be used in full-face and open-face configurations.
- Advanced Fibreglass Composite shell: HJC's AFC construction combines specialist materials and rigid fibreglass for a lightweight, impact-resistant shell.
- Road-ready approval: The F100 meets the ECE 22.06 motorcycle helmet standard.
- Clearer all-weather vision: The HJ-45 clear visor is Pinlock-ready, anti-scratch coated and provides 99% UV protection. A size-matched Pinlock anti-fog insert is supplied.
- Adjustable sun protection: The fitted dark smoke HJ-V12 sun shield can extend by up to 8 mm to improve coverage.
- Touring comfort: 3D-contoured cheek pads, moisture-wicking materials, glasses grooves and removable, washable crown and cheek pads support longer rides.
- Managed airflow: HJC's ACS ventilation uses front intakes and rear exhausts to move heat and humidity through the helmet.
Specifications
| Specification | Details |
|---|---|
| Brand and model | HJC F100 |
| Graphic and colourway | Bios MC5SF Black |
| Helmet type | Rotational modular / flip-up road helmet |
| Shell construction | AFC Advanced Fibreglass Composite |
| Approval | ECE 22.06 |
| Chin bar | HJC advanced rotation system for full-face and open-face configurations |
| Outer visor | Clear HJ-45, Pinlock-ready, anti-scratch coated and 99% UV protection |
| Visor sizing | HJ-45A for XS to M; HJ-45B for L to 2XL |
| Internal sun shield | Dark smoke HJ-V12 with up to 8 mm of adjustable extension |
| Ventilation | ACS Advanced Channelling Ventilation System |
| Interior | Moisture-wicking, removable and washable crown and cheek pads with 3D contouring and glasses grooves |
| Retention system | Micrometric buckle |
| Communication preparation | Pre-moulded speaker pockets; communication system not included |
| Manufacturer warranty | Manufacturing defects for up to 3 years from purchase or 5 years from manufacture, whichever comes first |
HJC F100 Size Guide
Measure around the widest part of your head, just above the eyebrows and ears. Use the result as a starting point, then check the helmet for firm, even contact without pressure points.
| Helmet size | Head circumference |
|---|---|
| XS | 54 to 55 cm |
| S | 55 to 56 cm |
| M | 57 to 58 cm |
| L | 58 to 59 cm |
| XL | 60 to 61 cm |
| 2XL / XXL | 62 to 63 cm |
Helmet fit is personal. Moto Central can help assess shell fit, cheek-pad contact and retention at our Midlands showroom.
What Is Supplied?
- HJC F100 Bios MC5SF Black helmet
- Clear HJ-45 Pinlock-ready visor fitted
- Dark smoke HJ-V12 internal sun shield fitted
- Size-matched Pinlock anti-fog insert
- Chin curtain
- Breath deflector
Compatibility and Optional Accessories
The correct replacement outer visor depends on helmet size: HJ-45A fits XS, S and M, while HJ-45B fits L, XL and 2XL. HJ-V12 is the compatible internal sun shield. Communication systems are sold separately, so confirm unit, speaker and microphone fit before purchase.
Product Questions
Is a Pinlock insert included?
Yes. A size-matched Pinlock anti-fog insert is supplied for the fitted HJ-45 visor.
Can the HJC F100 be used with the chin bar rotated back?
HJC states that the F100 can be worn in both full-face and open-face configurations. Always follow the helmet labels and HJC instructions, and lock the chin bar fully into the intended position before riding.
Does it have an internal sun visor?
Yes. A dark smoke HJ-V12 sun shield is fitted and its reach can be extended by up to 8 mm.
Is the lining removable?
Yes. The crown liner and cheek pads are removable and washable. The interior also includes glasses grooves for riders who wear spectacles.
Which HJ-45 visor does my size use?
XS, S and M use HJ-45A. L, XL and 2XL use HJ-45B.
Videos
Watch HJC's official F100 technical features video.
Moto Central Fitting and Showroom Support
A correctly fitted modular helmet should feel secure with even pressure around the crown and cheeks, without painful hotspots. If you are unsure between sizes, visit Moto Central for fitting help. We can also help identify the correct HJ-45 visor, Pinlock insert and other compatible accessories for your exact helmet size.