Gustav Winkler is proud to display the bike at the university of applied wind findings in Flensburg, Germany, yesterday (8 / 8).
''The wind turned the blades and the blades rotate the wheel,''the light of this inventor. So, melajulah this bike like a big fan running. Actually, this finding has been a long time, 1992, but will diperlombakan in international championships in the Netherlands, August.
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