I’ve had aluminum posts get wear marks under the seal. Perhaps they use a ceramic type carbon material like that used on those carbon brake rotors. They wear well I think and they certainly don’t grip any brake pads I tried on them so that material would be low friction.
April 7, 2022, 11:34 a.m. - Andy Eunson
I’ve had aluminum posts get wear marks under the seal. Perhaps they use a ceramic type carbon material like that used on those carbon brake rotors. They wear well I think and they certainly don’t grip any brake pads I tried on them so that material would be low friction.