| 摘要 |
There is provided a bottom bracket shell assembly for a hollow frame of a pedal-driven vehicle. The assembly comprises a bottom bracket shell comprising a first side open end, a second, opposed side open end and a shell wall extending therebetween, the shell wall defining a cylindrical cavity adapted for receiving a bottom bracket therein, and a casing mounted to the shell wall of the bottom bracket shell and extending upwardly therefrom, the casing comprising at least one wall defining a chamber and a closable access opening for accessing the chamber, the at least one wall comprising at least one communication opening adapted to allow communication between the interior of the hollow frame and the chamber.
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