Importance

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Abstract

A fitting structure of a bottom bracket shell of a bicycle contains: a hollow body having a receiving orifice. A first engagement element includes a first engaging section, a first aperture, and a first tilted guide portion. A second engagement element includes a second engaging section, a second aperture, and a second tilted guide portion. A first sleeve includes a first accommodation portion, a first connection portion, a first rib, a first abutting portion, and a first coupling section, wherein a first conically inclined face is defined between the first sleeve and the first tilted guide portion. A second sleeve includes a second accommodation portion, a second connection portion, a second rib, a second abutting portion, and a second coupling, wherein a second conically inclined face is defined between the second sleeve and the second tilted guide portion.

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First Claim