What is rotor warping?

Rotor warping refers to a deformation of the rotor surface resulting from excessive heat buildup during braking. When a vehicle's brake system is used frequently or aggressively, the rotors can overheat. This heat causes the metal to expand and can lead to uneven wear, resulting in a warped surface.

Warped rotors can lead to several issues, including vibrations during braking, reduced braking efficiency, and increased stopping distances. This phenomenon is significant because it directly affects vehicle safety and performance, making the understanding of rotor warping vital for anyone involved in brake maintenance and repair. Factors that can contribute to rotor warping include driving styles, improper brake pad material, or insufficient cooling of the brake components.

In contrast, the other options describe conditions that do not accurately depict rotor warping. Complete rotor failure signifies a more severe issue, while a temporary decrease in braking performance does not necessarily imply warping. Improvement in rotor performance contradicts the concept of warping, which negatively impacts the braking system. Therefore, the identification of rotor warping as a deformation due to excessive heat is crucial in the context of brake system management.