FREE Tutorial - How to create a tire 2 PARTS

I thought of a way around the size limit for free products. So I made it into 2 parts. therefore I have published it again.
Part 1:
Part 2:
>1.5-hour tutorial with a detailed explanation of each step of creating a tire.
>Two OBJ files are included
> This tutorial will also help you in creating other radial objects with repetitive patterns.

I like to know your opinion on the quality of the tutorial and how helpful it was for you.
Thanks in advance for watching it.

In case you are wondering what are those huge screws on the tire, those are part of a post-apocalyptic"Buggy" I am working for an environment project.