Below, we have an example of centerset and sideset from Abec11’s wheel lineup: Left to right, we have the Noskool shape, the Grippin shape (basically a Noskool shape with square lips…move the core to the very edge of the wheel for a Flashback shape, as seen in the red sideset wheel above), a Striker or Freeride shape, and a Flywheel core. Though, looking at the diagrams from SteveC, it looks a LOT like he borrowed from the Abec11 diagrams as well.
Below, we have some heavily worn wheels from Mig at Fullbag Skates, so you can see how wheels wear directly under the bearing seat.
Board Life 
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