Verkar vara gjord för liggcyklar. Iallafall visas det sådana på samma sida. Grafik visar fötternas rörlse.

Tyvärr förstår jag inte hur det funkar men ni har säkert läst om det förut.

Blir det ergonomiskt bättre och mer effektivt. Svårt att göra?

Kanske nåt för hemmabyggare att testa?

http://www.aist.go.jp/aist_e/sst/exhibition_guide/41.html

http://www.aist.go.jp/aist_e/sst/exhibition_guide/41.html

http://www.aist.go.jp/aist_e/sst/exhibition_guide/images/photo41_2.jpg

http://www.aist.go.jp/aist_e/sst/exhibition_guide/images/photo41_3.jpg

http://www.aist.go.jp/aist_e/sst/exhibition_guide/images/photo41_4.jpg

The Super Da Vinci Drive-Train Structure (SDV) is pedaled in a straight line rather than in a circular motion in order to make the most efficient use of leg muscles. Though the motion line of this system is shorter than the line for a bicycle that uses a linear drive with a simple up and down motion, the advantage is greater because the leg traces an elliptical path that has no stopping point.

1. A chain runs between two chain-rings, and the pedal is attached directly to the chain. 2. Two free-moving cranks keep the chain from twisting when pedaling. 3. The pedal traces a long ellipsis along the path of the chain and turns the chain-ring