Those BB lockrings will come off witha C-spanner found on the side of a pressed-steel multi tool like you get with some punctuere repair kits. Then a pair of needle-nosed pliers should get the adjustable cup out.
@rodabod started
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Those BB lockrings will come off witha C-spanner found on the side of a pressed-steel multi tool like you get with some punctuere repair kits. Then a pair of needle-nosed pliers should get the adjustable cup out.