I saw shovelracer's pictures with his skiddy bopper with tires with no teeth! I buy new tires and wheels complete. Mounted. I think last year I got each tire with wheel for $180 each, maybe it was $185, can't remember. I buy these direct from the CAT dealer. They are called "take offs". They are new tires and wheels. Maybe driven from the plant onto the tractor trailer, then from the tractor trailer and around the dealer's yard. Until someone buys a machine and upgrades to different wheels. They have a whole warehouse full of take offs. Our Cat dealer even employs a sales rep who's job is to sell take off's and attachments. This is the way to buy skid steer tires. You dont have to cart the machine into the tire place for them to dismount and mount tires. You save money. And you accumulate spare wheels/tires. I have enough spares that I could foam fill 4 of them for working around rebar and metal.