This is the other link, and it speaks more of the creator than his device. It's a rare (and strange) piece of bike history to be sure. I can't even begin to imagine how it works on the inside.
http://www.upi.com/Archives/1980/11/22/Engineer-invents-foot-shift-bike/7408343717200/
He said the derailleur shifting system, which became the bike rage of the 1960s, presented a repair challenge for even a graduate engineer like himself. Its delicate controls and cables required frequent adjustment.
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