A bike, short for bicycle, is a two-wheeled vehicle powered by human pedaling. It consists of a frame, handlebars, pedals, and a seat. Bikes are commonly used for transportation, recreation, and exercise. They come in various types, including road bikes, mountain bikes, and hybrid bikes, each designed for specific terrains and purposes. Riding a bike offers numerous benefits, such as improving cardiovascular health and reducing environmental impact. Bikes are also a popular choice for commuting, as they can help avoid traffic and parking issues. Many cities have dedicated bike lanes and rental programs to encourage cycling as a sustainable mode of transport.