Wilwood's OEM style SRP hub and rotor assemblies were designed utilizing the latest developments in iron formulation technology using our proprietary blend ferrous alloy to bring you the strongest, lightweight, most dependable rotor available in the market place. SRP rotors offer the high tech look and improved performance of a directional cross-drill and face slot pattern. The rotors are finished with a black electro coat to provide corrosion resistance. Wilwood's OEM style SRP hub and rotor assemblies were designed utilizing the latest developments in iron formulation technology using our proprietary blend ferrous alloy to bring you the strongest, lightweight, most dependable rotor available in the market place. SRP rotors offer the high tech look and improved performance of a directional cross-drill and face slot pattern.The rotors are finished with a black electro coat to provide corrosion resistance.These rotors are new castings, not reworked parts and our tolerances are held to the high standards you have come to expect from Wilwood Engineering. Designed as a cost effective alternative to our standard three piece hub and rotor assemblies, it also lends further utility kit designs.