If you want to remove and replace your cranks or remove and fit a bottom bracket, then the videos below will help.
For this job you will need the tools specific to whichever component you’re using, and you’ll need to take time to complete the job properly.
We’ve covered standard cranks, Shimano’s Hollowtech II cranks as well as both cartridge and external bottom bracket installation and removal.
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Removing a crank:
Removing a Shimano Hollowtech II crank:
Installing a Shimano Hollowtech II crank:
Install a cartridge bottom bracket:
Remove an external bottom bracket:
Install an external bottom bracket