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  1. #1
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    Bought wrong size clamp on derailleur, do they make adapters

    i have a shimano ultegra clamp on derailleur, size is 31.6 but it turns out I need the 28.4. Do I have to buy a new one or can I find some kind of adapter?

  2. #2
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    Wrap your seattube in friction tape (cotton cloth with a friction coating, it's cheap at your local hardware store) until your calipers measure 31.6.

  3. #3
    Senior Member Ziemas's Avatar
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    Quote Originally Posted by foul smell View Post
    i have a shimano ultegra clamp on derailleur, size is 31.6 but it turns out I need the 28.4. Do I have to buy a new one or can I find some kind of adapter?
    There are adapters available.


  4. #4
    Your mom
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    My understanding of the recent Shimano derailleurs is that the body is removable from the clamp; AKA you could go to the LBS for a different clamp and just remount the body of your FD. That said, I don't know that this is the case.

  5. #5
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    Quote Originally Posted by tellyho View Post
    My understanding of the recent Shimano derailleurs is that the body is removable from the clamp; AKA you could go to the LBS for a different clamp and just remount the body of your FD. That said, I don't know that this is the case.
    This is indeed the case. Just go buy a new $5 clamp in the size you need.

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