HJC - F100 Modular Helmet - Reff - MC21
The HJC F100 Modular Helmet in the Reff MC21 graphic is built on a fiberglass composite shell that's lightweight yet highly impact-resistant, with an advanced rotation system for the flip-up chin bar. The HJ-45 visor delivers 99% UV-A/B protection and is Pinlock-ready (sized HJ-45A for XS-M, HJ-45B for L-2XL), a compact visor mechanism keeps operation smooth and durable, and an adjustable sun shield extends 8mm for extra glare protection. The 3D contour design secures a comfortable fit, removable and washable crown and cheek pads keep things fresh, and the anti-bacterial interior fabric wicks moisture and dries quickly. Whether you're commuting daily or heading out for a weekend ride, this helmet's Advanced Channeling Ventilation System keeps airflow moving where you need it.
Features
- Fiberglass Composite Shell - Lightweight yet highly impact-resistant
- Advanced Channeling Ventilation System — Developed with advanced aerodynamic and ventilation technologies
- HJ-45 Visor — Offers 99% UV-A&B protection and Pinlock® prepared visor
- Compact Visor Mechanism - Minimum and durable visor mechanism
- Introduces advanced rotation system
- Features an adjustable sun shield mechanism, allowing the visor to extend by 8 mm for improved sun protection
- The 3D contour design ensures a secure fit, enhancing both safety and comfort
- Removable and washable crown and cheek pads
- Anti-bacterial fabric interior provides enhanced moisture wicking and quick drying function
- Visor is different depending on the helmet size: HJ-45A (XS-M), HJ-45B (L-2XL).
Specs
- Features: Removable Liner
- Riding Style: Adventure Touring / Dual-Sport
- Internal Sun Shield: Smoke
- Size Group: Adult
- Features: Vented
- Features: Moisture Wicking
- Features: Removable Cheek Pads
- Gender: Unisex
- Riding Style: Street
- Type: Modular
- Units: Each
- Model: F100
- Graphic: Reff
- Product Name: Helmet
- Shell Material: Composite Fiberglass
- Finish: Gloss
Frequently Asked Questions - HJC - F100 Modular Helmet - Reff - MC21
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.