Seiten-S-Profil und Aluminium-Eckwinkel von Airholder: versteckte Hohlräume für saubere Kabelführung und einen cleanen Look

Airholder's side S-profile and aluminum corner brackets: hidden cavities for clean cable routing and a clean look.

Denis Khristolyubov

At Airholder, we didn't develop the side S-profile as a "mere side panel," but as a fully-fledged system component. It functions like the front profile: it defines the geometry, increases rigidity, and serves as an interface for accessories.

One detail often only becomes truly apparent during assembly: A cavity is intentionally incorporated into the S-profile – and the same cavity also exists in the corner bracket (connecting bracket). This is no coincidence, but a clear system feature: You can use the space to route cables neatly and securely within the roof rack.

Why a cavity in the S-profile is a real advantage

As soon as accessories are mounted on the roof rack, electrical components are almost always added:

  • Auxiliary headlights / LED bar

  • Work light side or rear

  • solar panel

  • Reversing camera / antenna

  • 12V/USB power supply on the carrier

  • Sensors, trackers, outdoor sockets, etc.

In many setups, the cable is routed externally using cable ties. This works, but quickly looks messy, can cause noise in the wind, and is permanently more exposed to UV radiation, water, dirt, and mechanical stress.

The cavity in the Airholder S-profile elegantly solves this: The cable can run inside the profile and is therefore

  • better protected against UV radiation, water, sand and stone chips

  • less prone to chafing and damage

  • Visually much cleaner (almost "OEM look")

  • more aerodynamically stable (less fluttering/“whirring”)

Why it's important that the corner angle also has a cavity

It gets tricky especially at the corners: If you want to route the cable neatly inside, it mustn't "break out" at the transition.

That's why we've incorporated the cavity not only in the profile but also in the corner bracket . This allows the cable routing to remain within the system , without external loops, additional cable channels, or unnecessary detours. You guide the cable along the frame – and only let it exit where it's actually needed.

Advantage: The corner bracket is made of aluminum and coated with the matching system finish.

An additional advantage: The corner bracket is made of aluminum and coated in the same color as the holders/consoles (brackets). This not only ensures a harmonious, high-quality appearance, but also high durability in everyday use.

  • very good corrosion resistance (rain, salt, dirt – year-round outdoor use)

  • High UV resistance (less fading, permanently clean appearance)

  • Overall high resistance to environmental influences – ideal for a component on the outer edge of the roof rack.

Here's how to make practical use of the interior space: a typical example

Example setup: LED bar at the front + work light on the side + solar panel

  1. Select feed-in point
    You insert the cable into the system where you can best continue towards the vehicle (interior/underbody/engine compartment).

  2. Cable routing in S-profile
    The cable runs neatly along the side inside the cavity of the S-profile .

  3. Corner without external guidance
    At the transition, you use the cavity in the aluminum corner bracket – the cable remains in the system.

  4. Detoxification at the consumer
    The cable is only neatly routed out when it is close to the accessory (light, panel, camera).

What makes it an "airholder system" (and not just a trick)

This is not a makeshift workaround, but a deliberately integrated system feature – with clear advantages:

  • Clean look without visible cable ties

  • Cable protection and longer lifespan

  • Less wind noise and less risk of chafing.

  • Easier to retrofit: today light, tomorrow solar – cable routing is already taken into account

  • unified logic with additional components and accessories (ACCESSORIES)

Quick tips for long-lasting cable routing

  • Use automotive-grade cables with robust insulation.

  • Secure entrances/exits with rubber grommets or edge protection to prevent chafing.

  • Plan for small service reserves if accessories are removable.

  • For penetrations into the vehicle: seal properly (automotive standard)

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