Product Info: – Part: Disc Brake Pad and Rotor Set – Rotor Material: Cast Iron – Caliper Type: Without Calipers – Pads Material: Ceramic – Rotor Type: Vented – Driving Style: Performance / Racing – Rotor Style: Plain – Bolt Circle: 108 millimeters / 4.25 inches – Lug Quantity: 5 – Minimum Rotor Thickness: 27 millimeters / 1.