During the 1890s, a group of artists traveled through Europe and America with a giant bicycle they proclaimed was the largest ever built.
This bicycle was about 7 m long and had ten seats. But 20 years earlier, a Danish bicycle manufacturer had already built what was the largest bicycle in history: 21.6 m long and 34 seats!
The largest three-wheeled vehicle, a tricycle, was built in 1897. It weighed 1,360 kilograms, was 5 m long, and supported eight men. The rear wheels were 3.30 m apart.
Compare these giants with the smallest bicycle ever built - a bicycle of a little less than a kg that could fit in the palm of the hand. The wheels of this bicycle were about 5 cm apart, and the small device could be driven by an adult man.
The unicycle, or vehicle with only one larger wheel built, was 9.60 m high!
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