When I bought my new skateboard, I was happy. It used to fly as fast as the wind.
But with time, inevitable happened: the bearings of my skateboard collected as much dirt as they could.
The board became slower, much slower than it used to be. The maneuverability dropped.
The urgent bearings maintenance was required.
Do you know how to clean skateboard bearings? For a newbie, it sounds like Chinese. So it was for me. I had to look for information and try different materials until I found the proper options.