TRIPLE CONNECTION-STRUCTURED CRANK ARM EQUIPPED WITH BICYCLE PEDAL
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United States of America Patent
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Feb 10, 2017
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Mar 22, 2016
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Abstract
A triple connection-structured crank arm which can be applied to all types of conventional bicycles. The direction of the crank arm is adjustable throughout 360 degrees. When component crank arms are connected in a longer manner, speed can be utilized. In contrast, when the component crank arms are connected in a shorter manner, a corresponding bicycle can be utilized as an exercise bicycle.
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