My brother bought a set of SSR Comp-c's the other day and they arrived today and so like any wheel whore I needed to go over to look at them. The previous owner had them on an M3 with stoptech brakes and used them as winter wheels. So the raw aluminum has a little bit of pitting on it but it cleans up pretty well with minimal polishing as far as we have seen. However there is some sort of black substance on the front wheels only that is fairly hard to remove. Any ideas of what it is or how to remove it would be appreciated.


Metal polish seems to clean it up somewhat well just extremely slowly, bug & tar remover works about as effectively or ineffectively. Acetone and glass cleaner both seem fairly useless...
My dad also came out of the house when we were messing with them and said he remembered the M-parallels he had on his old BMW had something like this on them as well...
Oh and if you were interested in seeing the wheels

lets just say it is another stanced goat in the works


Metal polish seems to clean it up somewhat well just extremely slowly, bug & tar remover works about as effectively or ineffectively. Acetone and glass cleaner both seem fairly useless...
My dad also came out of the house when we were messing with them and said he remembered the M-parallels he had on his old BMW had something like this on them as well...
Oh and if you were interested in seeing the wheels

lets just say it is another stanced goat in the works

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