The Gnome Monosoupape is a unique and compact motorcycle produced by the French manufacturer Gnome et Rhône in the early 20th century. It features a single-cylinder, two-stroke engine and is known for its lightweight design, making it suitable for urban commuting and leisure riding. The bike's innovative engineering includes a distinctive single-valve system, which contributes to its name "Monosoupape," meaning "single valve" in French. Introduced in the 1920s, the Gnome Monosoupape gained popularity for its simplicity and reliability. Its design reflects the era's focus on practicality and efficiency, appealing to riders looking for an accessible mode of transportation. The motorcycle remains a notable example of early French engineering in the automotive world.