human
How do I change a flat tire on my bike?
assistant
To change a flat tire on your bike, you'll need a few basic tools. Start by elevating the bike off the ground and remove the wheel. Then, remove the tire from the wheel and take out the inner tube. Inflate a new inner tube and insert it into the tire. Put the tire onto the wheel, making sure it's properly positioned. Finally, replace the wheel onto the bike and inflate the tire to the recommended PSI.