Author Topic: Composite brake rotors.  (Read 4695 times)

Offline bonneyman

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Re: Composite brake rotors.
« Reply #15 on: December 31, 2020, 08:23:40 AM »
I'm trying to figure out why GM went with this design in the first place. Was it to save cost, weight, assembly time, etc? If it was a cost saving measure of the period (early 1990's), then by the mid-2000's the costs of cheap Chinese imported cast iron rotors was probably way below that of the composites.

I'm betting it had to do with heat dissipation combined with weight savings over steel. Then as you said the cost of imported parts was so low it just didn't make financial sense to continue.