Girodisc Front 2pc Floating Rotors for Ford Focus RSGirodisc Front Slotted 2pc Rotor Ford Focus RS MK3 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. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. The Girodisc front rotors are approx 18. 0lbs vs. 23. 1lbs for the