Search new + high quality used tires online. Size 235 40 R18 starting at: $34.99. Tires in stock: 239. Available brands: 39 with 105 models. All season: 154. Winter: 42. Summer: 43. Run flat: 8. 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!