GIRODISC A1-153SL Front Left Halmivnyi Dysk For PORSCHE Cayman S/Cayman GTS (981)/718 Cayman (982)/911 Carrera 4 (991)

Part numberA1-153SL

GIRODISC A1-153SL Front Left Brake Rotor for PORSCHE Cayman S / Cayman GTS (981) / 718 Cayman (982) / 911 Carrera 4 (991)

The Girodisc brake rotor is a direct replacement for your factory rotors and comes with caliper mounting brackets. By increasing the rotor diameter to 350mm (from the factory 330mm), the system provides greater stopping power and improved cooling efficiency. This upgrade enhances brake response and reduces fade without the need for an expensive big brake kit.

The rotor's center hat is machined from 6061-T6 aircraft-grade aluminum, and the friction ring is cast from Girodisc's proprietary iron, manufactured and machined in the USA. The internal vane structure, featuring curved vanes derived from racing technology, creates a powerful centrifugal airflow that effectively cools the rotor during aggressive braking.

The floating mount consists of ten cadmium-plated, high-strength steel pins that transfer braking loads and allow for axial and radial float between the rotor and the hub. These are secured by grade 12.9 strength bolts with hardened washers. Spring-style anti-rattle pucks eliminate cooling noise and allow for thermal expansion. Only the cast iron rotor ring needs to be replaced during service.