Bottom Bracket Bearings - Page 1 of 11

Figure 1

This basic tutorial will demonstrate the workings of a typical 3 piece bottom bracket, showing the removal and installation of the various components that make up the bearing system. Although there are slight size differences between different manufacturers, the basic principles of operation and assembly are virtually the same. In this tutorial, the bottom bracket shell has been cut from the frame for later use in a custom bicycle project.

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You can build it yourself from our easy to follow DIY plans!