RRADbike
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Was on Kickstarter

​Thanks to all of you who supported the Kickstarter campaign.  Unfortunately, it failed. The target was ambitious, but I thought RRADbike compelling enough to succeed.  I was wrong.  The project will, however, continue, by other means.  Stay tuned for developments.
What is pump action  cycling?

​Pump Action Cycling makes cycling twice as efficient as a conventional crank action bicycles.
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Why Pump action?
Pump Action Cycling (PAC) replaces the inefficient crank with a patented Rosser reciprocating action drive (RRAD) that allows more power to be generated using only the body's very efficient slow twitch muscle fibers. 
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How Does PAC work?

​The Rosser Reciprocating Action (RRAD) drive uses patented magnetically hinged overrunning clutches to avoid the "Dead Zone" inherent in cranks.
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