Search new + high quality used tires online. Size 235 50 R18 starting at: $43.53. Tires in stock: 718. Available brands: 80 with 228 models. All season: 635. Winter: 53. Summer: 30. Run flat: 17. 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!