Click image for larger version.  Name: Wheel1.jpg  Views: 6  Size: 84.5 KB  ID: 9520 Click image for larger version.  Name: Wheel2.jpg  Views: 7  Size: 96.5 KB  ID: 9519
I got this wheel as a set, when I got one of the XCs.
The dirt is kinda 'caked' on the wheel and just brush can't clean it out,
even with abrasive agent like Comet or Ajax. The dirt is almost
like its part of the wheel surface. What would be best formula
to do this myself (if I can)?

Thanks.