I had some real bad pitting on the wheels probably due to road salt in early spring. I first used sand paper 400 grit wet or dry, then went to 600 wet or dry, using both wet. Then used Mothers Aluminum and Mag polish. It really cleaned up the wheels. Don’t uses the sand paper with allot of pressure. Use a soft clean rag to finish off the polish. The wheels look like chrome now but it does take time. Putting the bike up high does help with getting to it easier. Thanks for the suggestions.