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RB Oversized 2pc Rotor Kit for Mazda Miata MX-5 (06-15) Rear
RacingBrake Oversized Rear Two Piece Rotor Upgrade for Mazda Miata MX-5 NC 06-15
This product photo is for reference only.
MSRP (pair): $776.67
Sale Price (pair): $699.00
You save $77.67!

Price with Selected Options: $699.00

Availability: Usually Ships in 2 to 3 Days
Product Code: 2559

RB Pads for MAZDA

ET300- Street (PD1180-33) [Add $56.48]
ET800 - Spirited (PD1180-38) [Add $99.11]


Rotor Kit Includes:

  • 2 ea. rear two piece rotors
  • 2 ea. aluminum alloy caliper adaptors
  • 4 ea. M10 mounting bolts
Weight Comparison
OE 1-PC (280x10) 9.3 lbs
RB 2-PC (330x12)
10.5 lbs

Features and Benefits:
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. They can deliver 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. Our unique and patented rotor designs make our discs cooler and last longer.

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.

Rotor Material: Racing Formula Alloyed Gray Iron & Heat treated
Machining: Slotted
Surface: EDP Coating w/cross cut grinding on friction surface

Click here to learn how RB two-piece rotors are built differently than the competition.


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


  1. 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

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