7 Crazy Bikes That Almost Changed Cycling Forever (and Then Failed)
https://www-newz.blogspot.com/2014/08/7-crazy-bikes-that-almost-changed.html
The history of cycling includes many innovations that failed to achieve popular or commercial success. The reasons for failure are many and various. But sometimes, even the wackiest-looking designs incorporated interesting ideas. Here's a selection of those concepts—most of which have at least one redeeming feature.
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