Search new + high quality used tires online. Size 235 45 R20 starting at: $174.76. Tires in stock: 10. Available brands: 3 with 6 models. All season: 3. Winter: 2. Summer: 5.. 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!