Fully floating rotor design Stainless steel rotor blades that are heat-treated and tempered back to the optimal hardness for maximum performance and durability Lightweight rotor profile design Patented SD-SystemÖ square drive button technology - rotor and carrier are riveted together so there is no need to ever rebuild the carrier buttons Front rotors are non-directional: fit right or left side Matching design for front rotors Lightweight rotor profile design. BRAKE ROTOR EBC VR1184