Search new + high quality used 225 55 R18 Sumitomo tires online, starting at: $34.99. 225 55R18 Sumitomo models in stock: 7. All season: 18. Winter: 3.. 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!