The HJC F100 Reff MC21 is a medium modular motorcycle helmet designed for riders who want versatile protection, comfort, and practical touring performance. Its fiberglass composite shell provides a lightweight yet highly impact-resistant foundation, while the aerodynamic shell profile helps support stability and reduced rider fatigue. The helmet is engineered for dependable use on the street, during commuting, and on longer motorcycle trips.
Advanced channeling ventilation helps direct airflow through the helmet for improved comfort in changing riding conditions. The HJ-45 visor provides 99% UV-A and UV-B protection and is Pinlock prepared to help reduce fogging. A compact visor mechanism uses an advanced rotation system, and the adjustable sun shield can extend by 8 mm for improved coverage in bright conditions. The 3D contour design supports a secure, comfortable fit, while the visor configuration for this medium helmet uses the HJ-45A visor specification for XS through Medium sizes.
The interior features removable and washable crown and cheek pads for convenient cleaning and long-term maintenance. Anti-bacterial fabric helps wick moisture away from the skin and promotes faster drying for improved comfort during extended rides. Manufactured by HJC and identified by manufacturer and vendor part number EH06NUS5321V, this medium F100 Reff MC21 helmet combines modular functionality with protective construction and rider-focused ventilation. Confirm proper sizing and local helmet certification requirements before use.
Features:
- Fiberglass Composite Shell: Lightweight construction with high impact resistance for dependable motorcycle protection.
- Advanced Channeling Ventilation System: Aerodynamic ventilation technology helps improve airflow and riding comfort.
- HJ-45 Visor: Provides 99% UV-A and UV-B protection and is prepared for a Pinlock anti-fog insert.
- Compact Visor Mechanism: Durable advanced rotation system supports smooth visor operation.
- Adjustable Sun Shield: Extends by 8 mm to provide improved sun protection in bright riding conditions.
- 3D Contour Design: Helps create a secure, comfortable fit around the rider’s head.
- Removable and Washable Interior: Crown and cheek pads can be removed for convenient cleaning and maintenance.
- Anti-Bacterial Fabric Interior: Moisture-wicking, quick-drying material helps improve comfort during extended rides.
- Medium Fitment: Designed for a Medium rider size and supplied with the HJ-45A visor specification for XS through Medium helmets.
- Brand and Part Number: HJC F100 Reff MC21 modular helmet, manufacturer and vendor part EH06NUS5321V.