Got bowdens, it cleaned a bit off.
There is a clearcoat on these which has a very subtle purple/green pearl, so a full refurb would be tricky.
Scotch pad isnt strong enough
If you notice in the photo, some of the black stains have a white centre, thats the alloy corroding, its eaten right through the clear.
I have tried oven cleaner, doesnt work. thats as far as ill go with acids and stuff.
So ive just kept going with the soft brass brush and Autosol. They are becoming acceptable.
Careful inspection reveals where a previous owner used harsh chemicals, a run or two on the rim where its dissolved the clear.
Still happy with the price i paid. Very, there Rays Volks with minor imperfections.