• so the problem was the rear wheel itself, not the cassette. put the cassette on an old tub from my PD on there and now there is ample space! Unfortunately the tyre has a red sidewall which temporarily ruined the look though

    Now I can't tell if it's confirmation bias but it does seem the derailleur hanger is a little bent inwards. It doesn't seem to affect shifting so I will happily ignore this for the time being.

    And yes the cassette does need a clean...

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