3GD Series Sport Slotted Rotors. 3GD Series Sport Slotted Rotors; Rear; For FMSI Pad No. D1451; Solid; 5 Bolt Holes; 282mm Dia.; 49mm Height; 9mm Thick; 64.1mm Center Hole Dia.;. All EBC rotors are made from OE spec grey cast iron, exactly as used on new car production and as many as we have tools for are BRITISH MADE wholly in our own UK foundry.