The Brembo rear GT Big Brake Kit pairs cast 4‑piston calipers with two-piece 345×28 mm slotted rotors in a Type 3 pattern painted yellow, improving cooling and rear brake modulation. It installs as a matched rear system for direct replacement. This kit is specified for 2005 1ster S/Spyder applications (excl. PCCB) per the source fitment.
Brembo 05-1ster S/Spyder (Excl PCCB) Rr GT BBK 4Pis Cast 345x28 2pc Rtr Slot Type3-Yellow