Search new + high quality used tires online. Size 225 50 R18 starting at: $33.54. Tires in stock: 680. Available brands: 65 with 180 models. All season: 572. Winter: 55. Summer: 53. Run flat: 136. 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!