Trouble threading lockring

[eorta7]

I'm trying to put cog and lockring on a Gipiemme hub and it's not working. The lockring seems to have a different thread. Anyone have an idea what the problem might be? Thanks in advance.

[Bill]

Got a picture of it?

[DaveM]

fixed gear lock rings have reversed thread. Are you threading it on the right way?

[eorta7]

(01-15-2011, 08:01 AM)Bill Wrote:  Got a picture of it?

ok, I will take a pic later. It's puzzling because the cog and lockring came as a set. The cog threads but the lockring doesn't.

[eorta7]

(01-15-2011, 09:23 PM)DaveM Wrote:  fixed gear lock rings have reversed thread. Are you threading it on the right way?

yes, I have tried reverse threading it.

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here's a pic guys. I don't know if it will help. I find it strange that the cog threads but the lockring wont. Thanks for all the help.

[trevgbb]

as I remember, from a long time ago!, a fixed hub has 2 different dia. threads, 1 rh for the fixed cog and 1 lh and smaller for the lockring. Your hub looks as though it only has 1 thread dia? thus intended for a freewheel, not a fixed.
Note that these threads can vary depending on country of origin of the hub, Gipiemme probably has Italian threads.
http://en.wikipedia.org/wiki/Flip-flop_hub