Search new + high quality used tires online. Size 285 50 R20 starting at: $57.77. Tires in stock: 63. Available brands: 18 with 29 models. All season: 55. Winter: 8.. 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!