WWI and Interwar

al lot f of stuff yhappeend at this time. including the devleopment of the bicycle. During the 1910s to the 1930s, bicycle development experienced significant technological and cultural advancements, aligning with broader societal changes. In the early 1910s, bicycles remained a popular form of transportation as well as a new outlet for recreational activities and sports. The introduction of the derailleur in the 1920s, a revolutionary gearing system from France, marked a significant evolution in bicycle design, allowing for more efficient multi-speed operations which facilitated easier riding over varied terrain. The 1930s saw further innovations such as the development of more reliable and efficient braking systems and the introduction of balloon tires, which offered greater comfort through improved shock absorption on rough surfaces typical of the era's roads. These decades also witnessed a shift in the bicycle's cultural significance, transitioning from a luxury item to a more accessible and widespread means of transportation due to economic constraints during the Great Depression. This period solidified the bicycle's role not only as a practical vehicle for transportation but also as a symbol of freedom and self-reliance, paving the way for its continued evolution and popularity in the mid-20th century.