Search new + high quality used tires online. Size 235 45 ZR18 starting at: $47.99. Tires in stock: 104. Available brands: 39 with 48 models. All season: 74. Summer: 30.. 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!