Search new + high quality used tires online. Size 285 40 R20 starting at: $43.31. Tires in stock: 148. Available brands: 11 with 27 models. All season: 82. Winter: 2. Summer: 64. Run flat: 37. 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!