The History and Development of the Modern Bicycle The modern bicycle is widely regarded as one of the most efficient mechanisms for human propulsion ever designed. While contemporary models feature lightweight carbon-fibre frames and sophisticated gear systems, the evolution of the bicycle spanned over a century of trial, error, and engineering ingenuity. The journey from a basic wooden contraption to a global mode of transport altered not only public mobility but also social structures, particularly regarding the emancipation of women in Western societies. The earliest ancestor of the bicycle appeared in 1817, invented by the German Baron Karl von Drais. Known as the Laufmaschine (running machine) or dandy horse, this primitive device was constructed entirely of wood and lacked pedals, chains, or gears. The rider sat astride a wooden frame supported by two wheels and propelled themselves by pushing their feet directly against the ground. While it offered a faster alternative to walking, its reliance on smooth pathways and the physical exhaustion experienced by riders limited its widespread adoption. A significant technological leap occurred in the early 1860s in France, with the development of the velocipede, often nicknamed the boneshaker. Developed by Pierre Michaux and his son Ernest, this model introduced rotary pedals attached directly to the axle of an enlarged front wheel. The frame was manufactured from wrought iron rather than wood, which increased durability but resulted in an incredibly jarring ride over the cobblestone streets of the era. Despite the discomfort, the velocipede sparked a brief manufacturing boom and established cycling as a popular leisure activity among young, affluent men. By the 1870s, British engineers sought to maximise the speed of the machine by increasing the size of the driven wheel. This design philosophy culminated in the penny-farthing, characterised by a massive front wheel and a tiny rear wheel. Because each turn of the pedals rotated the wheel exactly once, a larger wheel allowed the rider to cover a greater distance with a single leg movement. However, the penny-farthing suffered from severe safety flaws. The rider sat precariously high above the centre of gravity, making forward falls, known as headers, a frequent and dangerous occurrence when striking minor road obstructions. The inherent dangers of the penny-farthing were finally resolved in 1885 with the introduction of the safety bicycle, pioneered by John Kemp Starley in England. His design, the Rover, featured two wheels of equal size and a rear-wheel drive system powered by a chain and sprockets. This layout allowed the bicycle to achieve high speeds without requiring an oversized wheel, keeping the rider safely close to the ground. The subsequent addition of pneumatic (air-filled) rubber tyres by John Boyd Dunlop in 1888 greatly enhanced rider comfort, cementing the safety bicycle as the definitive blueprint for all future bicycle designs. Questions 1–6 Complete the table below. Choose NO MORE THAN TWO WORDS AND/OR A NUMBER from the passage for each answer. Write your answers in boxes 1–6 on your answer sheet.

Period / Year	Name of Machine	Key Material Used	Distinguishing Feature / Limitation
1817	Laufmaschine	Wood	Propelled by pushing feet against the 1 ....................
Early 1860s	Velocipede	2 ...............	Pedals were connected straight to the axle; known for a jarring ride.
1870s	Penny-farthing	Iron / Metal	Had an oversized front wheel to ensure maximum 3 ....................
			High seating led to frequent 4 ....................
1885	Rover (Safety Bicycle)	Metal	Possessed two wheels that were of 5 ....................
1888	-	Rubber	The introduction of 6 ................. improved comfort for cyclists.