This video demonstrates how to change a road bike tire. First you would shift rear cassette to smallest gear and then you would open brake calipers or if you have the v-brakes. Then remove the quick release and then remove the wheel. Afterwards remove the tire with the tire levers. He helps by doing this slowly and provides instructions on the video screen in the form of text. If you follow the steps in this video, you'll be able to change your bike tire!