If you like geeking out and obsessing over the finer details of gear, then you owe it to yourself to check out skateboardtech’s YouTube channel and accompanying website, RatVision. It’s full of videos that explain how bearings work and the differences between various brands, as well as how to fix and grip a board. Both longboard and street skating tech are covered. It’s a little cornball at times, but the info is top notch.
Tip of the hat to Brendan R-N for the link.