Ballade Sports 2015+ Civic Type R FK2/ FK8 Front Floating Rotor Kit is a 2 piece CNC billet aluminum bell hub with an iron 350x32mm disk. Cooling veins are directional unlike the current OEM rotors. The FK2/FK8 uses a 24lb single piece front brake disk, where we have constructed a 2 piece Full Floating 22lb replacement.
Why full floating? This reduces knock-back in the braking system. Pad knock-back occurs when pads lose contact with the rotors, and it can be accompanied by excessive caliper piston retraction. ... When knock-back occurs, the master cylinder has to push the caliper piston out farther than usual, which results not only in a spongy brake pedal but a longer than usual stroke