How do I replace an inner tube on a bicycle tire?

To replace an inner tube on a bicycle tire, first remove the wheel from the bike. Use tire levers to take off one side of the tire from the rim. Take out the old inner tube and insert the new one, making sure it is properly aligned. Carefully put the tire back onto the rim, ensuring the tube is not pinched. Inflate the tube to the recommended pressure and reattach the wheel to the bike.