[charlie_morman]

You can but you risk damaging them.

Really? I've always just grabbed 'em by one of the spokes and just yank them off when I clean my wheels.

 

[charlie_morman]

Nice to know. There is an easy leverage angle that works good.

Just grab a spoke of the spinner, and pull it out a little bit, then up towards you and out in one good pull. Putting them back in I just push it in dead on until it is in a little bit, then just give it a good sideways punch to the center cap and voilà!