Dirk Diggler said:There's a first time for everything, and for Halloween (perhaps I was distracted by passing out
candy at the same time I was working) I cross threaded a cassette lock-ring. Other than tossing
out the cassette body (Zipp NOT TOO cheap I imagine). Has anyone just removed, and tapped threads
back in (what diameter/pitch?, I assume it's a standard, but my cassette body is Campagnolo)?
The damage was not too major. About the first 4 threads were chewed up. I'm sooo [censored], I've
build wheels, bikes . . .etc. .And never screwed up like this. It was weird, there was no
resistance to indicate I was not parallel to the cassette body.
-David
The tool we use now for Shimano spline cassette lockrings has a 50mm long 5mnm shaft in the center.
It's made by Lifu and sold under several house brands. Cheap, too. It makes a difference when either
the lockring or the body ( or both!) are aluminum.
We don't have a Campagnolo pattern tool like it, however.
To your immediate problem, I'd get a steel lockring of the proper thread and cut a slit or two in
it, then use that as a tap for your marfed body threads. You'll only be removing material, that is
to say, you won't recover any lost thread. But in aluminum the usual failure is a galling or
smearing of the material and that would at least clear the extraneous swarf out of your thread.
Good luck!
--
Andrew Muzi www.yellowjersey.org Open every day since 1 April, 1971
