The first one-piece rotor with floating function. Which is lighter, better, and lower cost. Patented open cuts are located on the ribs, giving the rotor a partially elastic nature, which forms the floating function. This structure also increases disc strength by 12%, saving at least 12% in material loss. During braking, thermal deformation, asymmetric wear between brake pads and rotor occur. Floating function automatically corrects the rotor-pad alignment. Which prevents permanent deformation and brake fade; increases service life and stability; ensuring optimal braking force and safety.