Search new + high quality used tires online. Size 215 50 R18 starting at: $65.2. Tires in stock: 28. Available brands: 5 with 7 models. All season: 27. Winter: 1.. 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!