Search new + high quality used tires online. Size 305 30 ZR20 starting at: $79.2. Tires in stock: 101. Available brands: 5 with 31 models. All season: 3. Summer: 98. Run flat: 6. 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!