Interesting idea, indeed…btw. here’s a video:
http://www.youtube.com/watch?v=txSboSNQINs
But…
…what about this cardboard bike, built by Phil Bridge of UK (in 2008)?
http://www.bbc.co.uk/manchester/content/articles/2008/06/13/160608_cardboard_bike_feature.shtml
http://www.youtube.com/watch?v=Bp57rskJNUo
