Search new + high quality used tires online. Size 305 50 R20 starting at: $103.31. Tires in stock: 32. Available brands: 9 with 14 models. All season: 23. Winter: 3. Summer: 6. Run flat: 9. 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!