Description
The 034Motorsport 380mmx28mm 2-Piece Floating Rear Brake Rotor Upgrade Kit for the BMW F8X BMW M2 C/CS, M3/M4 C/CS, & M4 GTS is a complete replacement brake rotor kit, designed to work flawlessly with the factory rear calipers found on the BMW F8x M2 Competition/M3/M4.
Weighing in at approximately 22.2 lbs, our lightweight design retains proper thermal mass in the rings to adequately capture heat, while utilizing 72 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.
The central hat portion of the 034Motorsport rotor is made of 6061-T6 aircraft specification aluminum. The disc is constructed out of a proprietary metal alloy that can withstand immense braking temperatures while holding form allowing hard street use and long days at the track, allowing you to drive versus working on the car. These rotors improve thermal capacity by utilizing 72 directionally curved cooling vanes to forcefully flow cool air through the rotor and are profiled specifically to improve heat dissipation compared to the OE rotor vane design.
The face of the rotor utilizes J-Slot slots which increase braking surface area over drilled rotors as well as clean the pad and surface of contaminants and allow hot pad outgassing, all while reducing overall braking noise compared to a traditional slotted rotor. This J-Slot design also improves upon the OEM drilled rotors, as drilled rotors are prone to cracking after repeated abuse.
With its true 2-Piece design, the rotor and hat have a floating mount system that utilizes high-strength alloy steel bobbins. The pins take the load from braking actions while maintaining the axial and radial float between the hat and disc, allowing for safe expansion and contraction from heat. This 2-Piece design also makes repair costs in the future significantly less overtime, as only the rotor rings would need to be replaced.
Features:
- Lightweight Construction (22.2lb 034Motorsport Rotor), the Same Weight as OEM, but with Improved Metallurgy and Thermal Capacity, despite Lightweight Construction to Match OEM Rotor Lightweight Design Elements
- Floating, 2-Piece Design
- Aerospace Grade Aluminum Hats
- CM-250 Special Alloy Rotor Rings
- J-slotted Friction Face
- OEM Fitment & Functionality
- 72 Curved Vanes Force Cooling Air through Brake Disc
- Floating Bobbins Mounting System
- Replaceable Rotor Rings
- Lower Long-term Maintenance Cost
Fitment:
- BMW M2 Competition F87 S55 3.0L 2019-2021
- BMW M2 CS F87 S55 3.0L 2021
- BMW M3 F80 S55 3.0L 2015-2018
- BMW M3 CS F80 S55 3.0L 2017-2018
- BMW M4 F82 S55 3.0L 2015-2020
- BMW M4 GTS F82 S55 3.0L 2015-2020
Notes :
- For F8X M2 CS, M3/M4 Competition/CS, or M4 GTS owners with the factory M-CCB Carbon Ceramic Brake Package (2NK) looking for a much more cost-effective brake rotor alternative, the 034Motorsport 2-Piece Floating Rotors are a direct swap for your factory carbon ceramic brake rotors!
