Girdodisc Rear Rotors for 19-up BMW M240i G42,M340i,M440i G2X w/ 348mm F rotors
G2X M340i & M440i. G2X with optional M Sport brakes. Our 2-piece, fully floating assemblies help shed unsprung weight and rotating mass from the front axle of the vehicle. The rotor rings are machined from a proprietary casting made of high-carbon iron formulated to GiroDisc’s specifications.