The cages are all removable (inside and outer – the inner – bit attached to top mech- is effing tricky requires a vice and two people and some fiddling – or more skill than I have).
POster can you not straighten in a vice?
Is the same as this X0 to remove the trick is to wind it back to remove the tension and get it at the correct point and pull apart – my e-mail in profile if you really need to know how to do this _ I have pdf file bookmarked at work on this you might !!
FWIW – all the gubbings are interchangable – screws, springs , top halfs etc
X9, X0- and X7 are all the same cage shapes – well abit different but they all fit together.
Of no real use to anyone but I have the top half of an X9 if required