Wilwood Rotor-GT48 SPC-37-RH 12.88 x 1.00 - 12 on 8.75in

Wilwood is known for making serious braking components for racing and high-performance street use. This GT48 rotor is a prime example, built with the extreme conditions of professional motorsports in mind. Its heavy wall construction and directional curved vanes are designed to absorb and dissipate heat effectively, which is crucial for preventing brake fade and getting the most life out of your rotors and pads.

These rotors are cast from a premium grade, long-grain carbon iron. This material choice helps ensure long wear, good thermal stability, and resistance to warping under stress. Wilwood machines every GT rotor to remove stress points and excess weight from the pad sweep area. The faces and outer diameter are turned precisely to less than .001 inches for flatness, parallelism, and run-out, meaning it spins true. You'll also notice an asymmetrical face slot pattern; this design helps reduce harmonics for smoother engagement and better thermal balance across the rotor's surface. Finally, each rotor is dynamically balanced to ensure vibration-free performance at any speed.

If you're looking for the highest cooling capacity and longest service life for demanding braking situations, like short tracks or road courses, this rotor is a solid option. It's designed to handle the heat and keep performing.