An electric bicycle, also known as an e-bike, is a bicycle that is powered by a rechargeable battery and an electric motor. To introduce the concept, you can highlight its benefits over traditional bicycles, such as the ability to travel longer distances and tackle hills with ease, and the eco-friendliness and cost-effectiveness compared to gas-powered vehicles. Additionally, you can explain how e-bikes work, including how to control the motor and the battery life. You can also demonstrate the various styles and designs available, from city bikes to mountain bikes, to showcase the versatility of the technology.