Search new + high quality used tires online. 18 Inch Tires, starting at: $21.99. Tires in stock: 39118 tires. Available brands: 252 with 2213 models in 165 sizes. All season: 34614. Winter: 3103. Summer: 2012. Run flat: 1257. 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!