Search new + high quality used tires online. 20 Inch Tires, starting at: $27.09. Tires in stock: 9794 tires. Available brands: 195 with 1340 models in 136 sizes. All season: 7342. Winter: 1003. Summer: 1424. Run flat: 460. Selling all used tires at discount costs. All used tires go through 2 layers of inspection on specialized equipment. One year warranty + free shipping on all inventory ;) Happy shopping!