Uploaded March 2018 | Updated September 2026, 2 weeks ago

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Easy DIY how to: removing, cleaning, servicing, and replacing a Shimano HollowTech crankset.

The cranks pictured are HollowTech II Ultegra 6600 series.

You will need:
* Shimano HollowTech wrench with star-shape tool for turning locator cap bolt. Amazon US: amzn.to/2D9dCRg | UK: amzn.to/2FnKk76
* 6 mm hex key
* Possible: soft mallet / block of wood & hammer
* Rag
* Anti-seize.

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