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Campy 9 Speed Lockrings - Different ID's?

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Campy 9 Speed Lockrings - Different ID's?

Old 08-23-20, 03:18 PM
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La Brea Bike 
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Campy 9 Speed Lockrings - Different ID's?

I am swapping a 9 Speed cassette from one wheel to another, and it appears that there must be multiple lockrings for 9+ Speed Campy hubs? The originating wheel (something other than a Campy produced hub) has a lockring that seems to be 26.0mm OD at the threads, The new wheel has a Record Hub, and seems to want to take a larger lockring (hard to tell with my calipers, but it looks like ~26.8mm. Can someone tell me which lockring I should be looking for?

Thanks!
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Old 08-23-20, 04:06 PM
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I have lockrings from a Campy Chorus 10-speed rear hub and the threads mike 1.060" or 26.92 (nominally 27 mm) in diameter. That should be the lockring you need for your Record hub too.

If I understand it correctly, there were two versions of Campy 9-speed freehubs. The older one was Campy 8/9-speed compatible and the newer one was 9/10/11-speed compatible. The newer one takes the 27 mm lockring.
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Old 08-23-20, 04:13 PM
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Awesome! Exactly what I was looking for. Thank you so much for the help!
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Old 08-23-20, 06:36 PM
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There are also different lock rings depending on if you have an 11t or 12-16t 1st cog.
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Old 08-24-20, 11:32 AM
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Originally Posted by La Brea Bike View Post
I am swapping a 9 Speed cassette from one wheel to another, and it appears that there must be multiple lockrings for 9+ Speed Campy hubs? The originating wheel (something other than a Campy produced hub) has a lockring that seems to be 26.0mm OD at the threads, The new wheel has a Record Hub, and seems to want to take a larger lockring (hard to tell with my calipers, but it looks like ~26.8mm. Can someone tell me which lockring I should be looking for?

Thanks!
Yes. 8 speed cassettes used a 28x1mm thread lock ring, the first 9 speed freehub bodies 26x1mm, then Campagnolo switched to 27x1mm with the move to over sized axles.

Last edited by Drew Eckhardt; 08-24-20 at 05:57 PM.
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