Paragon Performance Rotor Rings 315mm x 28mm (12.40" x 1.10") - P.C.D. 190.5mm - D50 MSRP: $470.00 Paragon Performance Rotor Rings 315mm x 28mm (12.40” x 1.10”) - P.C.D. 190.5mm - D50 Paragon Performance Rotor Ring offers superior braking and cooling efficiency optimized for track and race applications. It features directional...