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Home > Forum > Triathlon Forum > Changing Cassette from Tiagra 11-25t to 6700 12-25t Issue

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Changing Cassette from Tiagra 11-25t to 6700 12-25t Issue
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thepilo
Aug 21, 14 18:20
Post #1 of 7 (765 views)
I am changing my cassette from a Tiagra 11-25t to a Ultegra 12-25t set. When I put the Ultegra cassette on, and tighten the Lock Nut, There is about 1/16" play on the cassette. The Lock Nut is not hitting the cassette. Is there something that I am missing? I got the set used. Any ideas? I didn't take any pictures and put the old casette back on, but was hoping someone might have had this issue before.

Thanks!
Dan
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Re: Changing Cassette from Tiagra 11-25t to 6700 12-25t Issue [thepilo] [ In reply to ]
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link5485
Aug 21, 14 18:22
Post #2 of 7 (760 views)
Are you sure you're not missing a spacer?
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Re: Changing Cassette from Tiagra 11-25t to 6700 12-25t Issue [link5485] [ In reply to ]
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thepilo
Aug 21, 14 18:26
Post #3 of 7 (747 views)
I have the spacers in between each gear. Not sure if there was supposed to be a spacer before the first gear goes on. There is not one on the Tiagra.
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Re: Changing Cassette from Tiagra 11-25t to 6700 12-25t Issue [thepilo] [ In reply to ]
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spider
Aug 21, 14 18:28
Post #4 of 7 (746 views)
Are you trying to install a 10 speed on a tiagra 9 speed? Sorry, I've seen it done.
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Re: Changing Cassette from Tiagra 11-25t to 6700 12-25t Issue [spider] [ In reply to ]
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thepilo
Aug 21, 14 18:30
Post #5 of 7 (743 views)
No, It's a tiagra 10 Speed. Just found the part listing PDF and see that I am missing part #14. http://si.shimano.com/...EV-CS-6700-2924B.pdf
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Re: Changing Cassette from Tiagra 11-25t to 6700 12-25t Issue [thepilo] [ In reply to ]
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nickag
Aug 21, 14 18:34
Post #6 of 7 (740 views)
Have a look on the old cassette, sometimes that little 1mm spacer can get stuck on the cassette when you remove it from the freehub.

Also check if there is a different lockring for a 11T and 12T cog, in my experience they have a different lockring so make sure you're using a 12T lockring for the new cassette.
Last edited by: nickag: Aug 21, 14 18:40
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Re: Changing Cassette from Tiagra 11-25t to 6700 12-25t Issue [nickag] [ In reply to ]
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thepilo
Aug 21, 14 18:37
Post #7 of 7 (734 views)
Thanks, It's back together now. I'll take it apart again tomorrow.
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