Fox Mainframe MIPS Helmet - Black
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Product Information
Full details
The Fox Mainframe MIPS Helmet is designed for adult mountain bikers seeking a reliable balance of safety and ventilation on the trail. Its standout feature is the integrated MIPS impact protection system, which actively reduces rotational forces during angled impacts, providing peace of mind during technical rides. While it offers excellent coverage and cooling, riders should note that its fixed visor design may feel less adjustable than higher-end competition models.
All features
| Age Group | adult |
|---|---|
| Colour | Black |
| Gender | Unisex |
| Material | Polyester |
| Model Part Number | 003356272 |
| Brand | FOX |
Extended Product Information
FAQs
What is MIPS technology?
MIPS stands for Multi-directional Impact Protection System, a layer inside the helmet designed to allow the helmet to slide relative to the head during an impact to reduce rotational energy.
Is the visor removable?
The visor on the Mainframe is designed as a fixed component and is not intended to be removed or adjusted while riding.
How do I determine my size?
Measure the circumference of your head just above your eyebrows and refer to the Fox size chart to match your measurement against the shell sizing.
Can I wear glasses with this helmet?
Yes, the helmet design is compatible with most standard cycling sunglasses and goggles.
How often should I replace the helmet?
It is recommended to replace any helmet after a significant impact, or every 3 to 5 years depending on usage and degradation of materials.
Troubleshooting
Helmet feels loose even when dial is tightened
Ensure the rear fit system is positioned below the occipital bone at the back of your head; if it sits too high, the helmet will feel insecure.
Liner is absorbing sweat and causing discomfort
Remove the liner and machine wash on a delicate cycle or hand wash with mild detergent; replace the liner once fully air-dried.
Pros and Cons
Pros
- Advanced rotational impact protection via MIPS
- Extended rear coverage for increased safety
- Efficient ventilation system keeps the head cool
- Removable and washable liner for easy maintenance
- Lightweight construction (approx. 390g for medium)
Cons
- Fixed visor design limits customization
- May feel bulky for road-specific cycling applications
- Limited color variety in specific regions
Setup, Compatibility & Care
To set up your helmet, loosen the rear retention dial completely before placing it on your head. Once positioned level across your forehead, tighten the dial until the fit is snug but comfortable; ensure the side straps form a 'V' shape just below your ears. To care for the helmet, hand wash the inner liner with mild soap and cold water, then air dry completely. Avoid using harsh chemicals or solvents on the outer shell, as these can compromise the integrity of the plastic materials.