HISTORY OF BICYCLING Historia de la bicicleta

Dejiny cyklistiky

1791 CELERIPEDE (Velocipede) by Comte de Sivrac (Paris, France)

• Children toy in the form of a wooden horse

• Propelled by feet, steering by leaning

1817 DRAISIENNE (HOBBY HORSE) by baron Karl Drais von Sauerbronn (Germany)

• To get around the royal gardens faster

• Invented steering • two same-size in-line

wheels, propelled by pushing your feet against the ground

• Made entirely of wood and iron

1839 Kirkpatrick MacMillan (Scottish blacksmith)

• First bicycle with pedals (lever-driven)

• Weight 25 kg • 225.8 km trip to

Glasgow (average speed 8 mph)

1860’ Tricycle for ladies

• Women did not feel safe and comfortable on 2 wheel bicycle

• Tricycle did not tip, more elegant ride

• Less provocative, more decent

1861 Pierre Michaux (Parisian manufacturer of horse carriages,

France) • Invented cranks and fitted

it on the front wheel • world's first mass-

produced riding machine • Known as the velocipede

(“fast foot”) or Boneshaker on cobblestone roads (made out of wood and metal)

1870s High wheel bicycles

Why big wheel? List design

disadvantages!

• Made out of steel • Solid rubber tires • Great popularity • Cost average six

months pay

Why big wheel? Disadvantages.

• The larger the wheel – the farther you could travel with one rotation of pedals – traveled faster

• Bigger diameter wheel – more comfortable – less bumpy when going over holes

• Rider sat high above the center of gravity, machine easily rotated forward on its front axle

1885 ROVER SAFETY BICYCLE by John Kamp Starley (England)

• Prototype of the modern day bicycle

• improvement of metallurgy sparked the next innovation – chain and sprockets – gear ratios

• Hard rubber tires

More improvements

• 1888 Pneumatic tires (John Boyd Dunlop)

• 1895 Derailleur • 1896 bike cost –

average worker 3 months pay

• 1909 less than 1 month pay

In 1896 Susan B.

Anthony said that "the bicycle has done more for the emancipation of women than anything else in the world."

1970’ Mountain Bicycling Marin County California

• Group of riders bike off road in mountains (cyclocross)

• Need for more durable bikes

• Balloon tires, drum brakes, motorcycle components imported

• Late 70’ national coverage – mail order business

• Components manufactures offer specialty mountain bike parts - reduced weight by 3kg (6 pounds)

• By 1985 sales of MB surpass road bikes

1990’ frame design changes

Due to new materials • carbon fiber • Titanium • Aluminum • Disk wheels • Greg Lemond aero

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