Can't get Cassette Lockring Started
I'm trying to install a Dura-Ace cassette on a Zip 404, but no matter what I do I can't seem to get the threads of the cassette lockring to catch on the threads in the freehub body.
I've tried removing the 11 tooth cog and carefully screwing in the lockring, but even when it catches, it only turns about 1/8th of a turn and seems to seize up (like it may be cross-threaded, but it doesn't look cross-threaded and I've tried to be careful to not force it).
Any ideas?