Search new + high quality used tires online. Size 225 50 R18 starting at: $34.99. Tires in stock: 609. Available brands: 55 with 130 models. All season: 512. Winter: 38. Summer: 59. Run flat: 216. 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!