The R1 Concepts ceramic rear brake pad set for 1977–1989 Porsche 928 is specified as a replacement rear-axle friction lining for those model years. Identified in the listing as ceramic rear pads for 1977–1989 928 applications, the package provides the rear braking friction components described for service or replacement on Porsche 928 vehicles within that year range.
R1 77-89 Porsche 928 Rear Ceramic Brake Pads