Search new + high quality used 265 50 R20 GT Radial tires online, starting at: $131.3. 265 50R20 GT Radial models in stock: 4. All season: 9. 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!