How to assemble the folding knob on the WideWheel 2019

Here are two video of how to assemble the folding knob on the 2018 WideWheel.

Part 1: the different parts:

https://drive.google.com/file/d/1w-psdSdx_uaPKM1CCkAwc2tYRDQOQqGK/view?usp=sharing

Part 2: how to assemble the parts:

https://drive.google.com/file/d/12nys8wmQvSEQtbdKQII_pYEG126f2SR6/view?usp=sharing