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Old 09-01-07, 05:27 PM
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Doug5150
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Originally Posted by joe99
Just wondering...

Are there any commercial production recumbent trikes using a non-circular pedal action? I am sure that experimental builders have tried all sorts of variations involving elliptical cranks and other such devices....
Two I know of....
Gary Hale makes a "glider" LWB recumbent:
http://www.halebikes.com/index.html

The Sherer trike uses a linear pedaling system:
http://www.shererusa.com/

....I like the function of the Sherer type of system in particular, because it does not limit the rider to a specific pedal stroke length.... I have a pet theory that (if it were technically possible) bicycle riders would prefer to take lots of little pedal strokes [keeping their legs nearly extended] when cruising over level ground--and they'd take fewer, deeper pedal strokes when climbing hills--just like people do when they are jogging.
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