Brake rotors need to be machined to correct distortion or damage to the braking surfaces. Restricted access to this service or field expediency may force the installation of new pads on bad rotors. Short-lived mobility may allow the avoidance of tow charges and permit the vehicle to reach a suitable repair location. This temporary repair method is not recommended. No reputable repair facility would engage in such activity, and many municipalities enforce legislation that prohibits ineffective or dangerous workmanship on brake systems.
Brake friction material is held to the pad backing plate in one of two ways. One method bonds the two substances with a strong adhesive, while the other style employs rivets to join the pieces. Either pad construction can severely damage the rotor if the friction material is worn away. The backing plates of bonded pads might contact the rotor somewhat evenly as material wears away. Riveted pads begin scoring grooves into the rotor as soon as friction surfaces wear down to the rivets.