This has to come off.. the axle on the wheel is wobbly as flip and I'd like to sort it
Any ideas how the cassette comes off?
I've tried shifting that 'toothed' outer ring but don't think I have the right tools, not fussed whether it (cassette or ring) gets destroyed in removal..
Any ideas how the cassette comes off?

I've tried shifting that 'toothed' outer ring but don't think I have the right tools, not fussed whether it (cassette or ring) gets destroyed in removal..