The Harley-Davidson Museum has pulled the covers off discarded prototypes of a leaning three-wheeled motorcycle developed by The Motor Company.
Harley-Davidson commissioned automobile hot rodding legend John Buttera to build the original prototype (pictured above) in 1998. Codenamed the “Penster”, the Trike looks like it could have been an earlier version of the Can-Am Spyder, but it had a tilting front end similar to the Piaggio MP3.
According to The Kneeslider, Harley-Davidson filed a patent for the leaning front end which uses hydraulic actuators to tilt the trike and return it to a vertical position.
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