Search new + high quality used tires online. Size 235 50 R18 starting at: $47.99. Tires in stock: 93. Available brands: 54 with 69 models. All season: 84. Winter: 8. Summer: 1. Run flat: 4. 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!