Search new + high quality used tires online. Size 225 40 ZR18 starting at: $47.99. Tires in stock: 74. Available brands: 29 with 51 models. All season: 47. Summer: 27. Run flat: 2. 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!