¿puede un invento del siglo xix cambiar el siglo xxi?

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http://commons.wikimedia.org/wiki/File:Flor-Murraya_manipulata.JPG

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15-20 min

8-10 min

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“Es una bici ysirve para ser

más feliz”.

“Muévete en bici por Madrid”@yayel

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http://www.cycling-embassy.dk/wp-content/uploads/2011/05/Bicycle-account-2010-Copenhagen.pdf

675 €375 €

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