-
1870 It was the first completely metal bicycle with solid rubber tyres.
the small wheel allowed the movement of the big wheel. -
1817-Baron Von Drais invented the walking machine which was a bicycle without pedals
-
this bike had pedals that applied directly onto the front wheel.
it made of wood, except for its metal wheels. -
it was made leaner which made it lighter and simpler. These bicycles were used for racing
-
in 1984, cogs added to the rear gears- This meant that gear speeds increased.
-
in 2002 the modern bicycles were developed. It was made of metal and cogs.
-
the electric bicycle were developed by an American company and their speed is about 20-35 km/h.
