Search new + high quality used tires online. Size 255 50 R20 starting at: $39.35. Tires in stock: 759. Available brands: 62 with 153 models. All season: 709. Winter: 43. Summer: 7.. 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!