the lockring is still intact but the top 2mm of the hub thread has sheared off.
i can put the disc on the splined but because of how it all fits together, usually it’s lockring/spacer/rotor if i put the original spacer on there’s not enough thread on the hub for the lockring to engage. what I’ve done is put 2 cassette spacers in place of the original spacer which then allows the lockring to bite the few remaining threads on the hub.
I’ve actually now, glued the rotor on, taken bike for a ride and I’m not dead…yet. I’ll keep an eye on it but as the hub is fecked anyway a bit of glue won’t make it worse, can’t really afford a new hub at the mo. :(
thanks for listening!