I've got a 977.1 Targa 4S with PCCB's, it's done 67k miles and the PCCB's look like new. I took the wheels off to measure the disc thinkness (digital micrometer, Mitutoyo) and it looked like the rear discs were half way through there thickness, there's a min thickness on the disc. Also there are 3 wear discs that look like new. Fronts are less worn than the rears?
Anyway, after getting paranoid about the replacement cost, if I do 5kmiles per year that's 12 years before replacements - I don't track the car. They work perfect from cold and don't make any noises. To make the discs last longer pads should be replaced before they wear out. Mine were at 80% left at 50k miles, measure by OPC.
I'm just going to use them and work out what's next when the do expire. I spoke the guys at Surface Transforms, their discs can be recoated at little cost, but £4k/axle. Steels are another option with yellow calipers? Maybe the cost of the carbon discs will have come down in 2027 when they need replaced?
Anyway, after getting paranoid about the replacement cost, if I do 5kmiles per year that's 12 years before replacements - I don't track the car. They work perfect from cold and don't make any noises. To make the discs last longer pads should be replaced before they wear out. Mine were at 80% left at 50k miles, measure by OPC.
I'm just going to use them and work out what's next when the do expire. I spoke the guys at Surface Transforms, their discs can be recoated at little cost, but £4k/axle. Steels are another option with yellow calipers? Maybe the cost of the carbon discs will have come down in 2027 when they need replaced?
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