Bottom bracket assembly of a bicycle and left crank arm assembly thereof
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United States of America Patent
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Jan 6, 2015
Issued Date -
N/A
app pub date -
Jan 16, 2013
filing date -
Jan 16, 2012
priority date (Note) -
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Abstract
A bicycle bottom bracket assembly that reduces the accumulation of dirt and/or corrosive substances inside the shaft extending between the crank arms of the assembly. The bottom bracket assembly includes a shaft having a through-cavity that extends along its longitudinal direction; a crank arm is associated with each end portion of the shaft, and the through-cavity extends unobstructed through the crank arms and the shaft.
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