Full Speed Ahead K-Force WE Disc Brake Rotor - 140mm 6-Bolt Silver. Designed for maximum heat dissipation and minimum brake fade on long descents the FSA K-Force WE two-piece rotor accomplishes that mission perfectly. Complete with a refined look these rotors are an easy choice to add to any premium bike setup.Two piece rotor design with forged aluminum carrierDouble disc ground stainless steel rub ringCountersunk rivets and disc screw mount points