The adjustment of the rods on a car primarily affects what aspect?

The adjustment of the rods on a car primarily affects toe-in, which refers to the angle of the front wheels relative to the centerline of the vehicle. When the rods, specifically the tie rods or control arms, are adjusted, they directly influence how angled the wheels are when viewed from above. Proper toe-in alignment ensures that the wheels are oriented correctly to minimize tire wear and enhance steering response.

When toe-in is set correctly, it allows the vehicle to track straight while driving and ensures that there is even contact between the tires and the road surface. Conversely, if the toe is not adjusted properly, it can lead to premature tire wear and handling issues. Understanding the role of toe-in is crucial for vehicle maintenance and performance, making it a vital area of focus for automotive technicians.