09 Design Replacement Brake Rotors Pair 380x34mm – BBK Discs for Ford Focus RS Mk3
High performance replacement rotors for 09 Design big brake kits on the Ford Focus RS Mk3. Sold as a precision-matched pair for balanced braking, consistent wear and strong pedal feel on road and track.
Each 380×34 mm disc is manufactured from FC25 carbon steel for excellent heat stability and strength under repeated hard stops. A blackened finish adds corrosion resistance and helps manage heat. These rotors mount to your existing 09 Design disc bell via our bobbin system to allow controlled thermal expansion and reduce the risk of warping.
The grooved face clears gas and debris, keeps the pad surface clean, improves initial bite and helps prevent glazing during sustained high temperatures. This supports consistent braking performance and can extend pad and disc life.
Designed to replace the friction rings in 09 Design BBK kits for the Focus RS Mk3, including popular 09 Design references for this platform. Please use our vehicle lookup to confirm fitment or check the Vehicle Fitment tab for full details.
Important: For use with 09 Design bells and bobbins only. Professional installation and correct bedding-in are recommended.
| Disc diameter | 380 mm |
| Disc thickness | 34 mm |
| Construction | Two-piece floating when mounted to 09 Design bell |
| Material | FC25 carbon steel |
| Face | Grooved |
| Finish | Blackened for corrosion resistance |
| Supplied | Pair of rotors (left and right), friction rings only |
Fitment: Ford Focus RS Mk3 running the 09 Design big brake kit for this platform.




