5/64 inch (2 mm) minimum for rear and 1/8 inch (3 mm) for front pads.

 

Hey, all, couldn't the brake dust generation be a function of bias rather than weight distribution? In order to improve the stopping power of the car, some manufacturers increase the bias toward the rears, thus holding the back end down by making it grab first. This would generate more brake dust on the rears for lighter braking and stop and go driving where the weight does not transfer significantly toward the front, as opposed to hard stops where the fronts have to carry the load. Also, I don't know the specs on the car, are the front and back pads the same size? Larger Pad = More friction = More dust.

Dave

 

Typically the fronts are larger and have the most stopping power to make the car understeer. If the rear brakes have most of the power, then the tail of the car is more inclined to step out under braking. Almost all cars, even high end (Ferrari and Lambo, etc) design some understeer into the cars through the brakes so that over anxious drivers (raise your hands) dont out drive their ability.