Search new + high quality used tires online. Size 225 50 R18 starting at: $33.54. Tires in stock: 826. Available brands: 71 with 203 models. All season: 682. Winter: 63. Summer: 81. Run flat: 156. 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!