Search new + high quality used tires online. Size 255 50 R20 starting at: $34.99. Tires in stock: 618. Available brands: 61 with 142 models. All season: 587. Winter: 26. 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!