What customer concern may arise from an out of round rear tire?

An out-of-round rear tire can lead to noticeable vibrations, particularly felt in the vehicle's ride quality. This vibration tends to be more pronounced at lower speeds because, at these speeds, the tire does not roll smoothly. Instead, the irregular shape of the tire causes it to create a repetitive rise and fall as it rotates, directly affecting the overall stability and comfort of the ride.

At higher speeds, the impact of an out-of-round tire may become less noticeable as the momentum and centrifugal force can help mask the vibrations. The vehicle's dynamics change, and the effects of the vibration can be somewhat diminished due to the constant motion and contact patch dynamics, making concerns less apparent.

This phenomenon is particularly noticeable because vibrations caused by an out-of-round condition can lead to increased tire wear and potentially affect other suspension components, which is a significant concern for vehicle owners. Understanding that an out-of-round tire primarily causes more severe vibrations at lower speeds helps technicians diagnose and communicate the issue effectively to customers.