Paragon Performance Rotor Rings 390mm x 37mm (15.35" x 1.46") - P.C.D. 220mm - D70 MSRP: $770.00 Paragon Performance Rotor Rings 390mm x 37mm (15.35” x 1.46”) - P.C.D. 220mm - D70 Paragon Performance Rotor Ring offers superior braking and cooling efficiency optimized for track and race applications. It features directional ventilation...