Rotors are usually made to last, but only on top of the line vehicles they are made to last forever. The majority of drivers usually need to check on their rotors from time to time. Interestingly enough, the replacement of the brake rotors often is not necessary, you might get away with simply just resurfacing them. In fact, everyone should perform the sanding and resurfacing of their brake rotors every so often regardless. This is going to maintain their surface nice and equal and in return each of those of your current pads and rotors will keep going much longer. Usually you are able to tell that the rotor needs resurfacing by pulsating brake pedal. Another part of the system that can cause damage to the brake rotor are brake pads which can get worn out, which you can identify by screeching or squealing sounds while braking. If not dealt with, the pad might harm brake rotor which will involve its replacement because even if you put in brand-new pads, they will likely require replacement all over again after a several months of commuting.