Product Info: Part: Brake Set Position: Rear Rotor Material: Cast Iron Rotor Type: Vented Driving Style: Performance / Racing Rotor Style: Plain Bolt Circle: 111.5 millimeters / 4.39 inches Lug Quantity: 5 Minimum Rotor Thickness: 30 millimeters / 1.18 inches Nominal Rotor Thickness: 33 millimeters / 1.