Search new + high quality used tires online. Size 235 40 R18 starting at: $102.8. Tires in stock: 94. Available brands: 23 with 47 models. All season: 81. Winter: 2. Summer: 11. 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!