Search new + high quality used 275 45 R20 Michelin tires online, starting at: $47.99. 275 45R20 Michelin models in stock: 14. All season: 31. Winter: 33. Summer: 23. 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!