Search new + high quality used 245 45 ZR18 Ironman tires online, starting at: $63.64. 245 45ZR18 Ironman models in stock: 3. All season: 6. 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!