Search new + high quality used tires online. 18 Inch Tires, starting at: $30.16. Tires in stock: 18885 tires. Available brands: 232 with 1661 models in 145 sizes. All season: 16956. Winter: 1152. Summer: 711. Run flat: 689. 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!