Search new + high quality used tires online. Size 215 50 R18 starting at: $95.74. Tires in stock: 96. Available brands: 15 with 23 models. All season: 89. Winter: 6. Summer: 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!