Uploaded March 2018 | Updated September 2026, 2 weeks ago

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Easy DIY how to: removing, cleaning, and replacing - or installing a new - Shimano HollowTech bottom bracket.

The bottom bracket pictured is a HollowTech II Ultegra.

You will need:
* Shimano HollowTech wrench or generic version. Amazon US: amzn.to/2D9dCRg | UK: amzn.to/2FnKk76
* Nylon brush
* Optional: degreaser
* Rag
* Anti-seize.

Using the above Amazon links helps support my channel and is appreciated!