Originally Posted by
San Rensho
Treadle propelled bikes have been around since the invention of the bicycle, and they quickly became extinct. I think its an overcomplication of the very efficient and simple bicycle design, but to each his own. It is a cool design, however.
I think the gearing system on this design makes it unique... I recall seeing other treadle bikes that used direct drive to the wheels and thus were "fixies" of sorts. This was the first such device I have seen with both a gearing system and adjustable stride.
Anything previously was more akin to something like this: