Wilwood 01+ 2 pc Rear Sport Rotors - Plain or Drilled & Slotted

Wilwood Promatrix Rear Rotor Kit — 140-17644 / 140-17645
Bolt-on rear rotor upgrade for Mazdas that demand more than stock.

If your rear brakes are due for a refresh—or you're chasing better balance behind your big front kit—Wilwood’s Promatrix Rear Rotor Kits are a rock-solid solution. These are direct-fit replacements for select Mazda applications, offering improved rotor quality and performance without needing to modify your factory setup.

Each kit includes precision-machined 2-piece rotors that offer better cooling, lower weight, and sharp looks. Whether you're just cleaning up the rear to match a front upgrade or dialing in a balanced street/track setup, the Promatrix kit steps things up where it counts.

🔧 Key Specs:

• Rotor Diameter: 10.85"

• Rotor Width: 0.39"

• Minimum Wheel Size: 15"

• Bolt-on Fitment: Mazda (see exact applications below)

• Hat Material: Aluminum

• Rotor Face: Vented iron

• Mounting Hardware: Included

Why Choose Promatrix?

• 2-piece design for lighter unsprung weight

• Great for performance street and  track use

• Factory-style rear fitment

• Matches the look and performance of Wilwood front kits

• Wilwood quality, made in the USA

Part # 140-17644 , 140-17645