Too cool! DIY bicycle with mechanical (flywheel) regenerative braking, assist (video)

[Kenny]

Originally Posted by Occasionally6

.... I think electrical assistance with an externally charged battery will be superior.

Indeed

As just one intelligent example; how about a 4.2 lb. assist (that includes motor, drive hardware, controller and battery).

"One concern I do have is normally on my short 5 to 10 mile, 8 to 16� km errand runs I purposely do strong HP acceleration out of intersections and stop streets as a way to do mini interval training. If I use the assist for acceleration help, it is thrilling but in the long run I may be loosing muscle tone."

John Tetz's highly detailed build is here: www.recumbents.com/wisil/tetz/E-AssistMetric