Search new + high quality used 235 50 R18 Bridgestone tires online, starting at: $55.94. 235 50R18 Bridgestone models in stock: 16. All season: 22. Winter: 19. Summer: 3. Run flat: 5. 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!