Search new + high quality used tires online. 20 Inch Tires, starting at: $24.69. Tires in stock: 20848 tires. Available brands: 214 with 1662 models in 153 sizes. All season: 16258. Winter: 1548. Summer: 3037. Run flat: 944. 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!