Inpepinnovations...When my cars had drum brakes the shoes had to be replaced at about 60,000 miles. At that time the drums would be turned (remachined). Nowadays, with disc brakes they go in as few as 25,000 miles, and the rotors are so thin that they can't be remachined, so you need to buy new ones. But the disc brakes do work well.
Disc brakes were first used in aircraft, and next in race cars, where light weight compared with drums, was the main advantage.
