After years of use, my garden cart tires finally got so many tiny cracks due to age and sun that they no longer held the air and kept slipping. I bought a pair of these spare tires and was perfectly happy with the quality of the tires themselves but had trouble fitting them. I was able to mount the tires on the wheels with no problems, but I couldn't get the tire beads. for sealing wheels to inflate them. I gave up and took the tires and wheels to a local lawn mower shop but they couldn't seal them either. Eventually the problem was solved by installing a tube in these tubeless tires.