You can take some polish or woody wax on some bronze wool and try to polish the pitting so that it becomes less noticable.
If that doesn't work, then I would either sand or soda blast the frame and have it painted in whatever color you want with Imron.
-Alex
If that doesn't work, then I would either sand or soda blast the frame and have it painted in whatever color you want with Imron.
-Alex