Search new + high quality used tires online. Size 225 50 R18 starting at: $34.99. Tires in stock: 331. Available brands: 53 with 115 models. All season: 247. Winter: 29. Summer: 55. Run flat: 66. 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!