Product Info: Part: Disc Brake Rotor Rotor Material: Cast Iron Rotor Design: Rotors Only Rotor Type: Vented Bolt Circle: 120 millimeters / 4.72 inches Center Hole Diameter: 70.7 millimeters / 2.78 inches Lug Holes Quantity: 5 Lug Holes Size: 120 millimeters / 4.72 inches Minimum Thickness: 30 millimeters / 1.