Girodisc Front 2pc Floating Rotors - BMW M3 E9X
BMW M3 E9X
The Girodisc system is a direct replacement for the OE disc, no modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly.
The central hat section of rotor is made 6061-T6 aircraft specification aluminum. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.
In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors.
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