Search new + high quality used tires online. Size 255 30 ZR20 starting at: $106.95. Tires in stock: 11. Available brands: 6 with 8 models. All season: 2. Summer: 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!