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  This is the union the mountain bike and track bike
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  Created by Gary Fisher with Charlie Kelly
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  Change the wood for metal, for created the bicycle
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  Was created by John Boyd Dunlop
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  This one had its front wheel more small than the one of 1870 and Brakes were inserted
This was created by John Kemp ( England) - 
  
  Invented the chain, created by Renold
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  It had a big wheel, this was created by James Staley (France)
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  Created by “Pierre michaux and his son Ernest michaux ( France)
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  Created by Kirkpatrick Macmillan
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  Was impelled by the feet, created by Karl Von Draís de Sonerbon,
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  It was animal form with two wheels, the Celifero was created by Da Sivrac
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