Search new + high quality used 255 40 R20 Michelin tires online, starting at: $48.8. 255 40R20 Michelin models in stock: 14. All season: 11. Winter: 11. Summer: 26. Run flat: 1. 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!