MOTION TRANSMISSION SYSTEM OF A BICYCLE
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United States of America Patent
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app pub date -
Mar 20, 2017
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Aug 9, 2007
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Abstract
A bicycle rear wheel sprocket assembly has twelve sprockets in a twelve sprocket assembly. The twelve sprocket assembly is configured to be mounted to a bicycle freewheel hub. The freewheel hub rotates about a rotation axis and has a spoke attachment portion and a frame fastening portion which are spaced apart by an axial distance. End sprockets of the twelve sprocket assembly are positioned within the axial distance.
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