Search new + high quality used tires online. Size 235 40 R18 starting at: $47.99. Tires in stock: 200. Available brands: 32 with 96 models. All season: 111. Winter: 49. Summer: 40. Run flat: 4. 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!