Rotors, Rr, 345x24, G20 M340i

The 034Motorsport 345mmx24mm 2-Piece Floating Rear Brake Rotor Upgrade Kit for the G20 BMW M340i & A90/A91 Toyota Supra is a complete replacement brake rotor kit designed to work flawlessly with the factory rear calipers found on the G20 BMW M340i & A90/A91 Toyota Supra. It's a high-performance and racing-quality rotor weighing approximately 16.9 lbs. The lightweight design retains proper thermal mass in the rings to adequately capture heat, while utilizing 36 enhanced directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat. The central hat portion is made of 6061-T6 aircraft specification aluminum, and the disc is constructed out of a proprietary metal alloy. The rotor face utilizes J-slots to increase braking surface area and clean the pad and surface of contaminants. The true 2-piece design uses a floating mount system with high-strength alloy steel bobbins, allowing for safe expansion and contraction from heat and reducing long-term maintenance costs as only the rotor rings need to be replaced. NVH Levels: NONE - LOW.