best stuff to clean a polished rim on a buell firebolt XB9R 2005???

my rim is painted white with polished trim on the edge (from the factory). my bike has went through last years snow, ice and rain without protection on the wheels. my polished edges has iodized and i tried using abrasive liquids, paste and even Brasso.However, i can't get the edges to reach"any"type of shine. I don't wanta send the wheels to get re-painted $$$$$$!!!any suggestions before this white crap falls???