Good morning. Today we're going to discuss the history of the bicycle. The first bicycle, invented in the early 19th century, had no pedals and was pushed along by the feet. It was called a 'hobby horse.' Later, in the 1860s, pedals were added to the front wheel, creating the 'boneshaker,' which was very uncomfortable. Then, in the 1880s, the 'safety bicycle' with two equal-sized wheels and a chain drive became popular. This design is similar to what we use today. Interestingly, the bicycle's popularity grew rapidly, especially among women, as it provided a new sense of freedom and mobility. However, it wasn't until the 20th century that bicycles became affordable for the general public due to mass production techniques.
❓ What was the main disadvantage of the 'boneshaker' bicycle?