Search new + high quality used tires online. Size 255 40 ZR18 starting at: $69.96. Tires in stock: 20. Available brands: 12 with 16 models. All season: 15. Summer: 5.. 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!