Bike pre teardown:

Remove all components.

Most components remove easily with the approriate hex key.

The onnly parts that require specialized tools for removal are:

- Crank arms: require a crank removal tool https://www.instructables.com/Bike-Crank-Removal-Tool/

- Bottom brank: requires a bottom branket removal tool https://www.parktool.com/blog/repair-help/bottom-bracket-removal-installation-threaded

- Headset: requires a headset removal tool https://www.thebiketube.com/tutorials/diy-make-your-own-headset-cup-remover-tool