Search new + high quality used tires online. Size 235 45 R20 starting at: $50.87. Tires in stock: 85. Available brands: 10 with 20 models. All season: 65. Winter: 5. Summer: 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!