Search new + high quality used tires online. Size 285 40 R20 starting at: $51.4. Tires in stock: 125. Available brands: 10 with 26 models. All season: 63. Winter: 3. Summer: 59. Run flat: 7. 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!