Search new + high quality used tires online. Size 235 40 R18 starting at: $95.98. Tires in stock: 39. Available brands: 13 with 29 models. All season: 16. Winter: 16. Summer: 7. Run flat: 2. 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!