Search new + high quality used tires online. Size 235 45 R20 starting at: $44.53. Tires in stock: 85. Available brands: 10 with 17 models. All season: 66. Winter: 8. Summer: 11.. 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!