Paragon Performance Rotor Rings 324mm x 30mm (12.76" x 1.18") - P.C.D. 188mm MSRP: $470.00 Paragon Performance Rotor Rings 324mm x 30mm (12.76” x 1.18”) - P.C.D. 188mm Paragon Performance Rotor Ring offers superior braking and cooling efficiency optimized for track and race applications. It features directional ventilation...