This is PKT's Cadet Brake Rotor. It measures 180mm in diameter and is 3.3mm thick. There finally is an alternative to the heavy oem rotors. The light weight version of the rotor weights 13.7 ounces and is designed for quick heat dissipation. The rotor fits our current line of brake rotor hubs in 25mm, 30mm & 1-1/4" axle sizes. 6mm key is required. It is available in the light weight version or the new super light weight version (+$10.00). Perfect for Cadet, Sportsman, Minimax, Micromax & Mini ROK applications. Sold individually.