Search new + high quality used tires online. Size 255 30 ZR20 starting at: $160.95. Tires in stock: 7. Available brands: 3 with 5 models. Summer: 7. Run flat: 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!