HJC Adwatt Aero Time Trial Bike Helmet - White

The Adwatt was designed through enhanced wind tunnel testing to improve its drag force performance...

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Black White

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Product Information

Full details

The HJC Adwatt Aero Time Trial Bike Helmet is a professional-grade piece of cycling equipment engineered for time trialists and triathletes who demand top-tier aerodynamic performance. Designed through rigorous wind tunnel testing and validated by record-breaking UCI World Tour efforts, this helmet offers a specialized balance between drag reduction and ventilation. While it excels in speed-focused environments, its highly specific design and limited venting make it less suitable for casual road riding or climbing-heavy routes where maximum airflow is prioritized over aero efficiency.

All features

Age Group	adult
Colour	White
Gender	Unisex
Model Part Number	8804269650905
Brand	HJC

Extended Product Information

FAQs

Does the helmet come with the visor included?

Yes, the HJC Adwatt includes a high-quality mirror shield designed to integrate seamlessly with the shell.

Is this helmet suitable for long-distance triathlons?

Yes, it is excellent for triathletes, provided the course allows for an aerodynamic position to utilize the helmet's features.

How much does the helmet weigh?

The helmet weighs 260g in its standard configuration, or 320g when the visor is attached.

Can I replace the internal pads?

The X-Static pads are removable for cleaning, and replacements can generally be sourced through authorized HJC dealers.

What is the best way to clean the mirror shield?

Use a soft microfiber cloth and lukewarm water. Avoid chemical glass cleaners that may strip the mirror coating.

Troubleshooting

Visor is prone to fogging during rides

Ensure the internal air channels are not blocked and keep the head positioned to allow the Venturi vents to draw air effectively.

Chin straps feel loose or move during the race

Adjust the wide divider located under the ears to tension the strap geometry correctly before clicking the buckle.

Pros and Cons

Pros

Proven track record in world-record breaking events
Highly efficient aerodynamics with or without the visor
Extremely lightweight design for comfort
Includes a premium case for safe transport
Integrated mirror shield for improved field of vision

Cons

Limited ventilation compared to standard road helmets
Designed specifically for TT and track geometry
Requires careful storage to protect the mirror shield

Setup, Compatibility & Care

To ensure a proper fit, select the correct size based on your head circumference: Small (51-56cm), Medium (55-59cm), or Large (58-63cm). Always utilize the adjustable wide divider to lock the chin straps in place so they sit flush against the side of the face, minimizing turbulence.

Care instructions include:

Clean the outer shell and visor using only mild soap and water with a microfiber cloth.
Periodically remove the X-Static padding to hand-wash and air dry to maintain freshness.
Always store the helmet in the provided premium case when not in use to prevent scratches on the mirror lens.
Avoid exposing the helmet to high heat, such as leaving it in a locked car, as this can affect the structural adhesives.