Get some strong oven cleaner on the rear rack, it should strip the black anodising. Haven't done it myself but plenty on here have used it on cranks etc. It will eventually eat through aluminium if left to so be careful
@PhilDAS started
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Get some strong oven cleaner on the rear rack, it should strip the black anodising. Haven't done it myself but plenty on here have used it on cranks etc.
It will eventually eat through aluminium if left to so be careful