Wheel Cover

A wheel cover in motorsport is a disc or shroud that covers part or all of a race car's wheel, serving purposes ranging from protection and aesthetics to advanced aerodynamic functions.

The most basic type of wheel cover works just like those found on everyday road cars. These covers protect the wheel hub and spokes from dirt, moisture, and debris that could cause damage or corrosion. They also give race cars a cleaner, more professional appearance by hiding mechanical components behind a smooth surface.

In high-level racing series like Formula 1, wheel covers become much more sophisticated. These aerodynamic wheel covers are typically made from lightweight materials like carbon fiber or aluminum. Racing teams design them to control airflow around the wheels, which can help cool the brakes during intense racing conditions.

Some advanced wheel covers can actually create downforce, which pushes the car down onto the track for better grip and handling. The shape and design of these covers require careful engineering to balance cooling needs with aerodynamic benefits.

Formula 1 teams have also used wheel covers to work around technical regulations. Since rules strictly control what materials can be used for wheels themselves, teams sometimes use covers made from different materials to gain performance advantages.

Another type called static wheel fairings stays fixed to the wheel and includes special cutouts that allow hot air from the brakes to escape. This design helps prevent brake overheating, which can cause brake failure during races.

The term wheel cover can also refer to protective covers placed over steering wheels when race cars are parked or transported, keeping the steering wheel clean and undamaged between racing sessions.