Search new + high quality used tires online. Size 235 50 R18 starting at: $48.82. Tires in stock: 1149. Available brands: 100 with 313 models. All season: 956. Winter: 99. Summer: 94. Run flat: 41. 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!