Search new + high quality used 245 40 R18 Bridgestone tires online, starting at: $50.36. 245 40R18 Bridgestone models in stock: 14. All season: 17. Winter: 8. Summer: 5. Run flat: 12. 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!