RB Two-Piece Brake Rotor (Slotted) - Z51 REAR 06-12 PAIR
Part Number: 2069-311 Side: L/R Position: REAR Size: 330x24mm (13" x 0.9") (OE is 330x26mm) Rotor Weight (lbs.): 19
Note: These rotors are made to 340x30 dimensions, as compared with the OE size 340x32.
The Corvette Z51 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 both street and track. Not only will the rotors last 3 times or more longer than competitions' two-piece rotors, 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.
Racingbrake offers complete satisfaction guarantee to you and other Corvette enthusiasts; if you don't agree that they are the best two-piece rotors in value, look and performance your money can buy just return them for a full refund.
Please read the history on the Corvette two-piece rotors in our forums.
Rotor Material: Racing Formula Alloyed Gray Iron & Heat treated Machining: Straight Slot Surface: EDP Coating w/cross cut grinding on friction surface
NOTE: Retaining and jack screw holes have been removed to prevent the screws from rusting and causing difficult removal of the rotors. Our two-piece rotor hats are made of aluminum which is easier for installation and removal. See detail view here.
Click here to learn how RB two-piece rotors are built differently than the competition.
Weight Comparison One-piece 22.1 lbs. Two-piece 18.2 lbs.
Weight Savings: 3.9 lbs.
Replacement Components
Rotor Ring: D401-04-311
Material:
Alloyed iron formula adds strength and heat resistance. Heat treating further improves rotor performance for a more uniform and stabilized microstructure.
Design:
The cooling vanes are of a convergent nozzle design, which increases airflow and turbulence and makes discs cooler. (Illustration #1)
The center-mount flanges for hat mounting to the rotor ring have several benefits. (Illustration #2) It allows the ring to be used on either side of the vehicle simply by mounting the hat on either side of the ring (unidirectional). The stress load transferred from the ring to the hat is balanced. Air inlets are widely open to both inboard and outboard sides of the rotor. More air suctions and even temperature on both sides of the disc surface. Heat transfer from the disc surfaces to the hat is even and minimized by increasing the flange length and the airflow around the flanges. Mounting flanges are on both friction surfaces ultimately provides excellent heat balance.
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.
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