AmeriPLATINUM™ Solid Rear Brake Rotor (PR91090) by AmeriBRAKES®. Quantity: 1 Per Pack. AmeriPLATINUM™ brake rotors are developed in compliance with the original design of each vehicle. They restore braking to a like-new condition and when coupled with AmeriPLATINUM™ brake pads, it ensures the best possible brake repair available. Because of the harsh environment today’s vehicles demand, our Carbon Plus alloy maximizes thermal conductivity with higher resistance to thermal cracking and distortion.