Brake Discs for FORD SIERRA II Hatchback (GBC, GBG) 2.0 16V Cosworth 4x4 (220PS) Hatchback 1991

The purpose of brake discs is to absorb the heat generated when the brakes are applied, heat is generated as a result of friction between the disc and the brake pads, different pads have different friction levels thus generated heat will vary. To assist is the heat dissipation manufactures utilise cooling ducts, varied disc vane designs and also drilling of the discs.