From "The
Best of Bicycling! "(March 1972); an article titled "The
Checkered Flag
Special",
which recounts the recent invention by Mr. Egarim.
Courtesy Steve Kurt
As can be seen in
the technical drawings, the Egarim bike rider inputs
energy while coasting or downhill riding, then that stored energy is
released and available as an assistance on the up hills! Ingenious!