The R1 Concepts Geo‑Carbon drilled and slotted rotor for 1984–1989 Porsche 911 is specified for the rear right position with the Geo‑Carbon drilled-and-slotted surface. It is produced to match the right-rear braking location across the listed 911 years. Use this rotor as the rear-right replacement on compatible 911 models and confirm orientation and fitment prior to fitting.
R1 84-89 Porsche 911 Rear Right Drilled & Slotted Geo-Carbon Rotor