Tiralinee 3mm (Striper)

Use a dense color, not very liquid, non very dense (For the first paint test use a container under striper until you understand the correct density)
In this video i used red acrilic color:

https://www.youtube.com/watch?v=_VHOXk0Kjew

Print with supports. For the wheel I have used TPU (FFF World).
This is 3 mm. I don't test a 2 mm wheel. But you can find one ready (stl)