Search new + high quality used tires online. Size 235 50 R18 starting at: $34.99. Tires in stock: 482. Available brands: 75 with 207 models. All season: 409. Winter: 51. Summer: 22. Run flat: 19. 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!