if the wheels have little or no corrosion just rub them down dry with 400grt and repaint, problem with cromadoras is they are mag alloy which is a bit of a sponge with moisture, the only way i found to paint my wheels without corrosion re appering was to paint them hot straight out of a stove enamelling oven, 3 times it took to stop the damn things corroding, so my advice is if the origional paint is sound paint over it!!!