Quote:
Originally Posted by M5KEITH
Cermaic brakes are over kill. Driving on street you won’t notice it. If money is no object get them. If brake dust is a concern which u said is not but can always get new pads with less dust. They are going to be super expensive to replace if you have the car when time comes as is the initial $8K investment.
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You'll never need to replace them unless you track. They'll last longer than anyone here likely owns their car. CCB's don't wear out like normal brakes, they don't get thinner or anything like that. They only wear when they get really hot, which you'll never do on the street so they could easily last more than 200K miles for street use.
Wear on CCB rotors is due to the oxydation of the carbon fibres inside the matrix when exposed to very high temperatures (such as race track use). The wear indicators capture this oxydation wear. Once they are half exposed, it is indeed a good idea to have the rotors weighed; there is a good chance they will be under min. It is also important to note that BMW recommend replacing the rotors if either the wear indicators are half exposed OR when the rotors are under-weight.