Fingers: If the width of a human finger is 2.2 cm (7â8 in), then a million fingers lined up would cover a distance of 22 km (14 mi). If a person walks at a speed of 4 km/h (2.5 mph), it would take them approximately five and a half hours to reach the end of the fingers.
The rotors on a vehicle can last anywhere from 30,000 to 70,000 miles and sometimes more. A licensed mechanic, such as one from YourMechanic, can evaluate the rotors and advise you on their status; they may not need to be changed as often as the brake pads. Like brake pads, they should be replaced in pairs.
Best Answer: It very much depends on the type of vehicle, and how it is driven. I've seen brake pads last 80,000 miles, and I've seen them wear out in 15,000 miles. Rotors generally last for two or three pad replacements. I read in a Road & Track owner's survey of an Accura NSX going through brakes in 6000 miles (and tires almost as fast!).