A bicycle pump is a device used to inflate the tires of a bicycle. It works by forcing air into the tire through a nozzle that connects to the valve. There are different types of bicycle pumps, including hand pumps, floor pumps, and electric pumps, each designed for specific uses and convenience. Using a bicycle pump is essential for maintaining proper tire pressure, which affects the bike's performance and safety. Regularly checking and inflating tires can help prevent flats and improve the overall riding experience. Properly inflated tires also enhance the efficiency of the bicycle, making it easier to ride.