We've been looking for ATV tires for our customers. These tires are in hot demand, but poorly served by the big stores. The best place we've found for ATV tires is eBay.
We've seen all types of ATV tires on eBay. This includes new Dunlop, Yamaha, Bear Claw, swamper mud tires, Gater, Titan, and Honda. Some people also sell lightly used ATV tires. These photos can be tricky to take, so contact the seller if you have a question. Finally with used tires check if the tire has been patched or plugged. Many people don't like to purchase those sorts of tires. Other's love the savings.
After you receive your tires either replace them yourself or bring them into your local shop for replacement. Solution for tire mounting would be to check out Tirerack's list of recommended installers and see if any of them can mount atv tires.
The current list of ATV tires on ebay:
As stated on the top of the page by the logo, we share a portion of our revenue with charity. In the case of eBay we are compensated based on bids or new customer sign ups. We share those revenues the same way as with our other vendors.