I know some of the ads that come in are based on keywords that get picked up in each post. I don't know how much you can tweak the settings, but I just noticed this one. Slightly different kind of wheel being discussed.

 

Thanks for letting us know, lol. We try to block those that are inappropriate for our forum and items like get rich schemes, overpromised products (100mpg!) and political advertisements. This is a bit odd, but probably won't block it.

Who knows, maybe grinding wheels may be the next new trend like spinners!

 

Well my dad always taught me, if your wheels are grinding then it's too late .