I am new to Blender and I am having a hard time fixing some shading issues. I could really use your knowledge and experience!
What I am Trying to Make: I'm trying to make a car tyre using Blender Guru's tutorial, available at https://youtu.be/WhmRn-tYtxE.
The Problem: When I array my mesh around a curve (the curve has resolution set to 200), I get subtle shading issues wherever the mesh meets (highlighted in red in the image). I have enabled merge and removed duplicate vertices, but I can't seem to get rid of the issue. The .blend file is available here: tyre_issue_blend_file.
I would really appreciate any help with this issue. I really want to understand why this is happening, and how I can fix it.