as said the rims are anodized and will never be anything other than grey but if you insist on polishing them I use 2000 grit paper first get them shiny and then mothers or autosol and a buffing wheel but it will look like a mess if you try to do it with all the spokes in place so you have to unlace the rim and then do it but you better use a sealer over it because they will oxidize within a day of making it shiny unless you want to polish it every day