The Wilwood SRP drilled performance rotor, 12.88 x .810 in with a 12 on 8.75 in bolt pattern, uses a directional cross-drill and face slot pattern to improve pad-to-rotor interface. Holes and slots vent gases, reduce pad glazing, and inhibit compound build-up while removing material to lower rotating weight, yielding smoother engagement and improved pedal feel across varied braking conditions.
Wilwood Rotor-SRP48 Iron-LH-BLK-Drill 12.88 x .810 - 12 on 8.75in