Search new + high quality used 275 45 R20 Nexen tires online, starting at: $80.71. 275 45R20 Nexen models in stock: 6. All season: 8. Winter: 3. Summer: 3.. 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!