Product Info: Part: Disc Brake Rotor Position: Front Rotor Material: Cast Iron Rotor Design: Rotors Only Rotor Type: Vented Bolt Circle: 108 millimeters / 4.25 inches Center Hole Diameter: 63.6 millimeters / 2.50 inches Lug Holes Quantity: 4 Lug Holes Size: 108 millimeters / 4.25 inches Minimum Thickness: 20 millimeters / 0.