OUR SPARE TIRE CARRIER IS A QUICK AND EASY UNIT TO INSTALL. MOUNTS IN LESS THAN 10 MINUTES.  THE SPARE TIRE INCLUDED IS BETWEEN 50% AND 70% TREAD AND IS A SOLID SPARE TIRE THAT IS GUARANTEED TO HOLD AIR. THE SPARE TIRE CARRIER RESTRICTS THE USE OF THE TAILGATE SO DO NOT PURCHASE THIS ITEM IF YOU INTEND TO OPEN AND CLOSE THE TAILGATE REGULARLY.