A road bike frame is the main structure of a road bicycle, designed to support the rider and components like the wheels and handlebars. These frames are typically made from materials such as aluminum, carbon fiber, or steel, each offering different benefits in terms of weight, strength, and ride quality. The geometry of the frame affects the bike's handling and comfort, making it crucial for performance. Frames come in various sizes to accommodate different rider heights and preferences. Features like dropouts for wheel attachment and cable routing for brakes and gears are also important. A well-designed road bike frame enhances efficiency and speed, making it essential for competitive cycling.