I stopped riding about 10 years ago (cancer) and I recently decided to clean out my stash of vintage bikes. I came to a 700c front wheel with a Venus TCR rim and a Specialized hub. The hub has turned a sort of light "bronze" color and is stippled with tiny white dots. Mother's polish does not seem to touch it. The rim is cleaning up pretty nice, but the hub is not--after about an hour's work and half a small jar of Mothers. The hub itself still turns smooth as silk, and I now have the outside to a semi-shine, but no where near to what his hub was when it was in its "glory". Anyone have a suggestion? None of my other parts (so far) have this problem including the hubs on the wheels stored next to this one.