Search new + high quality used 235 40 R18 Bridgestone tires online, starting at: $60.52. 235 40R18 Bridgestone models in stock: 13. All season: 12. Winter: 10. Summer: 12. 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!