The R1 Concepts drilled and slotted brake rotor for 1961–1976 Triumph TR4 applications is the front left replacement rotor finished in black. It is supplied with drilled holes and machined slots and is specified as the front left unit for those TR4 model years. Install it when replacing a worn or damaged rotor to restore the braking surface at that wheel position.
R1 61-76 Triumph TR4 Front Left Drilled & Slotted Black Brake Rotor