Search new + high quality used tires online. Size 255 45 R20 starting at: $34.99. Tires in stock: 543. Available brands: 45 with 164 models. All season: 348. Winter: 53. Summer: 142. Run flat: 22. 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!