Search new + high quality used tires online. Size 285 40 R20 starting at: $50.92. Tires in stock: 115. Available brands: 9 with 30 models. All season: 52. Winter: 15. Summer: 48. Run flat: 15. 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!