Product Info: Part: Brake Rotor Position: Rear Rotor Material: Cast Iron Rotor Design: Rotors Only Rotor Type: Vented Rotor Style: Plain Bolt Circle: 139.7 millimeters / 5.50 inches Center Hole Diameter: 78.5 millimeters / 3.09 inches Lug Holes Quantity: 6 Lug Holes Size: 139.7 millimeters / 5.