Paragon 2-piece Front Rotors For M2 (F87) / M3 (F80) / M4 (F82/F83) with gold, red, or silver calipers

Upgrade your BMW M2, M3, or M4 with our high-performance OE replacement rotors. Measuring 400mm x 36mm, these front rotors provide enhanced braking power and durability. Perfect for passionate drivers who demand the best for their vehicle.

Made of CM-250 special formulated high carbon alloy cast iron, it allows for an optimal bite, thermal characteristics, high-temperature strength and durability. Rotor rings are heat treated to release stress in the rotor to avoid deformation and vibration then turned by state-of-the-art CBN surface machining to ensure better break-in with new brake pads.

Vibration is reduced as the rotor lateral run-out is kept within 0.03mm and well-balanced: variations are kept within 2 grams. All rotors went through rigorous quality control procedures and inspections to ensure the rotors are fit for their purposes. The floating 2-piece design allows thermal expansion of the rotor while minimizing deformation and ensuring the rotor is self-centered with the pads. A slotted rotor improves braking consistency by maintaining a clean contact surface and dissipate heat generated and gases released when the pads come into contact with the rotors. Slotted rotors have a superior advantage over blank rotors in wet or raining conditions by preventing water films to form between the brake pad and rotor surface. Weighing less than most O.E. rotors while maintaining proper thermal capacity, our 2-piece rotors improves overall handling by saving unsprung mass.

Aluminum hats are CNC machined from lightweight 6061-T6 aerospace grade aluminum for high strength and durability under extreme track conditions, then black hard coat/hard anodized to increase resistance to wear and corrosion. Mil-spec Type III anodized hats will not discolor under extreme heat, and are harder and more wear/scratch resistant. Unnecessary materials are taken out from the aluminum hats for maximum weight savings while maintaining proper structural integrity.
*Black hard coat and hard coat anodized hats are the same in terms of performance and durability.

• Direct bolt-on without any modifications and designed to work flawlessly with OEM ABS and brake system while maintaining factory brake bias. Compatible with OEM brake pads or aftermarket pads with the same pad depth (D)

• Directional ventilation vanes for optimal cooling performance, runs up to 30% cooler than O.E. rotors and increase cooling efficiency by up to 30%

• Floating 2-piece design

• Minimizing brake fade & judder during extended sessions

• Convert factory carbon ceramic rotors to iron rotors

• Rotor to hat mounting system: D-Bobbin (Long) - 12-bolt

• Each rotor assembly weighs 32.3 lbs (14.7 kg)

Direct replacement of: OEM BMW part number 34112284805 / 34112284806

Applications:

- F87 M2, M2C, M2CS (w/ red or silver calipers)

- F87 M2CS (w/ M Carbon ceramic brakes option, gold calipers)*

- F80 M3, M3 CS (w/ M Carbon ceramic brakes option, gold calipers)*

- F82/F83 M4, M4CS (w/ M Carbon ceramic brakes option, gold calipers)*

* Iron conversion. Convert the factory CCB carbon ceramic rotors to iron rotors.

Includes:

• One pair of Paragon Performance 400mm x 36mm (15.75” x 1.42”) 2-piece rotor assemblies with black hard coat/hard anodized 6061-T6 aerospace grade aluminum hats, stainless steel bobbins, and anti-rattle clips (assembled and ready to install)

• Detailed installation manual

Part # (w/ black hard anodized hat): P2R.013.400.360.22100.09.01.01.F

Part # (w/ hard anodized hat): P2R.013.400.360.22100.09.01.02.F

Extra/replacement hardware is available for purchase. We recommend using new hardware when replacing rotors to ensure the rotor ring is attached to the aluminum hat properly. Please refer to our Rotor Assembly Instructions for torque specs and detailed instructions.

Specifications:

Diameter: 400mm (13.78")

Thickness (new): 36mm (1.26")

Thickness (min.): 34mm (1.18")

Type: 2-piece floating

Face Pattern: Slotted

Vented / Solid: Directional ventilated

Number of Vanes: 48

Hat Material: 6061-T6 aluminum

Friction Ring Material: CM-250 high carbon alloy cast iron

Rotor Finish: CBN turned

Weight (per rotor): 32.3 lbs (14.65 kg)

Cross Reference:

OEM BMW 34112284805 / 34112284806

Girodisc A1-194

Diameter:

Caliper type: