Originally Posted by
Andrew R Stewart
I agree that some cassette lock rings have a noticeable difference in how tightly they fit within the freehub body threads. I never tracked brands or models but seem to remember that alloy lock rings tended to be a tighter fit on average then the steel more common ones are. BTW I add a drop of oil to these threads before installing the lock ring. Andy
Thanks, that was the case.
In the meantime I had a chat with Garmin support and they finally told me to force screwing and, if the freehub will be damaged, they would replace it for free. So, it took quite a big force to screw; I could never decide on my own to force so hard a new threaded part. I assume it is ok now.