Search new + high quality used tires online. Size 285 40 R20 starting at: $47.99. Tires in stock: 110. Available brands: 9 with 27 models. All season: 61. Winter: 12. Summer: 37. Run flat: 19. 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!