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RB Oversized Two Piece Rotor Upgrade for Ford Focus RS Rear
RacingBrake Oversized Rear Two Piece Upgrade Rotor Kit for Ford Focus RS 2016+
This product photo is for reference only.
Purchase Front & Rear together and $ave!
MSRP (pair): $832.22
Sale Price (pair): $749.00
You save $83.22!

Availability: Usually Ships in 1 to 2 Weeks
Product Code: 2565


Rotor Kit Includes:

  • 2 ea. Rear two piece rotors
  • 2 ea. Aluminum alloy caliper relocation adapters
  • 4 ea. M10 caliper mounting bolts
  • 1 ea. Rear axle set of SS brake lines
Weight Comparison
OE 1-PC (302x11) 12 lbs (estd)
RB 2-PC (350x12)
11.6 lbs

Features and Benefits:

Surface comes with curved slots helping to collect brake dust debris and keep the disc surface clean for better braking efficiency.

Detail of RB two piece rotor hardware - Self locking nuts, keep hat and disc together w/o using locking agent (glues) that retain the same torque regardless of operating temperature, while discs are still free to expand and contract during heat cycles.

Installation Note:
Rear caliper bracket needs to be trimmed (~2mm) on higher side to clear 350mm rotor.

Click here for more details.

These two-piece rotors were engineered to be the best stock replacement two-piece rotor on the performance market. This rotor is direct bolt-on, easy to install, no additional hardware needed, and an excellent upgrade for that delivers consistent brake torque under extreme heat, session after session. When it comes to replacement - operating cost over the time will be lower than one-piece rotor.

RB rotors are made of harder iron than OE rotors. Our rotors are most compatible with semi-metallic brake pads. We do not recommend the use of ceramic brake pads, which may cause vibration.


Alloyed iron formula adds strength and heat resistance. Heat treating further improves rotor performance for a more uniform and stabilized microstructure.


Exclusive full floating design with 10.9 grade alloyed hardware. Hardware is DACRO coated and crimp locking. DACRO is highly corrosion resistant and provides a film for easier movement between the hat and rotor ring as disc expands and contracts and the crimp design provides positive engagement without rattling or torque loss at temperature.

Related Links:
Two-Piece Feature Comparison Chart
Click here to learn how RB two-piece rotors are built differently than the competition.

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