On the left side you need to remove the lockring first then the cup. It should be traditional righthand threading
I agree with John is there a reason reason it is called the "fixed cup" and normally is only removed when replacing the bottom bracket
Pretty color
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk