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The R1 Concepts drilled brake rotor for 1990–1991 Mazda 929 (rear, right) is a black-finish drilled rotor intended as the replacement for the right rear wheel. The drilled surface assists heat management and pad bite during repeated stops, helping to restore consistent braking feel on the covered model and supporting routine service and brake refresh tasks.
R1 90-91 Mazda 929 Rear Right Drilled Black Brake Rotor
