Search new + high quality used 225 40 R18 Michelin tires online, starting at: $70.45. 225 40R18 Michelin models in stock: 9. All season: 2. Winter: 2. Summer: 14. Run flat: 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!