DBA DBA47420S T-Slot Uni-Directional Slotted Brake Rotor Driving Style: Daily Driver, Hauling & Towing, Performance / Racing Rotor Design: Rotors Only Rotor Construction: 1-Piece Rotor Style: Slotted Rotor Material: XG150 High Carbon Alloyed Iron Rotor Hat Finish: Black Rotor Type: Vented Rotor Diameter: 318mm (12.52") Rotor Height: 70.5mm (2.78") Nominal Thickness: 28mm (1.102") Minimum Thickness: 26mm (1.02") Lug Holes Quantity: 5 Bolt Circle: 139.7mm (5.5") Center Hole Diameter: 108mm (4.25") Quantity: 1 Per Pack Position:Front