Search new + high quality used 225 45 ZR18 Michelin tires online, starting at: $48.85. 225 45ZR18 Michelin models in stock: 4. All season: 7. Summer: 6.. 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!