Quote:
Originally Posted by M2PDX
The rotors wear the brake pad material down. That's what the pads are designed to do. So, yes, the dust is CAUSED by the rotors, but it comes FROM the pads.
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It is both. The rotor wears, otherwise they would last forever. Both carbon-ceramic brakes (SiC) and PSCB (tungsten carbide coated) produce very little dust and both have extremely hard rotors. The total surface area of the rotor is much greater than the pad, so 0.5mm of wear on the rotor is "worth" much more pad. The exact ratio is all over the place and I'm not sure what numbers to believe.