Paragon Performance Rotor Rings 300mm x 30mm (11.81" x 1.18") - P.C.D. 187mm - D46 MSRP: $470.00 Paragon Performance Rotor Rings 300mm x 30mm (11.81” x 1.18”) - P.C.D. 187mm - D46 Paragon Performance Rotor Ring offers superior braking and cooling efficiency optimized for track and race applications. It features greater thermal capacity...