Search new + high quality used 245 45 R20 Bridgestone tires online, starting at: $73.78. 245 45R20 Bridgestone models in stock: 6. All season: 5. Winter: 5. Summer: 6. Run flat: 7. 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!