The 3G Stepper: Vertical Motion Powered Bicycle August 8, 2006

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The 3G Stepper from 3G Bikes is a bicycle that is powered by your vertical motion. Instead of peddling with your two feet like a normal human being, you stand upright and place your feet on two decks on either side of the bicycle. Movement here is what powers the bicycle. If this catches on, I don't see why we don't return to those old timey bikes with a huge wheel in the front and a tiny one in the back since they're both as silly looking. Jump for a few more pics of this fine invention.

The 3G Stepper will be available this September with prices ranging from $199 to $649 for the four models. – Nicholas Deleon

3G Bikes Home Page [3G Bikes via Cool Hunting]