I would disagree that most black rims are anodized. Masking anodization isn't easy (if it is even possible) and most black rims are not completely black. However, the little wire brush attachments that come with a Dremel will be mostly worthless against the paint. Chemical paint strippers would be concerning if the rim had eyelets as it may eat away at the plating on the eyelets. [edit]In rethinking my statement above, if the rims were anodized then machined it could explain the non-black brake tracks. But if they were going to anodize the rim, you'd think they'd leave the brake track anodized for wear resistance and not machine away an improved surface.[edit]

If you wanted to polish the rims, I'd suggest a die grinder. You can get various sanding attachments from aggressive to almost polished. Finish up with polish compound on a cotton buff and you should get the look you want. You will need to either maintain that finish with polishing compound or clear coat it to preserve it. Id recommend the latter.

This kit should do the trick (you'll need an air compressor): http://www.thetoolwarehouse.net/p-32...atic-2010.aspx