Search new + high quality used tires online. Size 225 50 R18 starting at: $34.44. Tires in stock: 962. Available brands: 83 with 234 models. All season: 721. Winter: 96. Summer: 145. Run flat: 163. 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!