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  1. #1
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    7 speed conversion

    Can a 9 speed MTB wheel be converted to 7 speed? A change of freewheel or cassette or are the hubs speed spacific? Any chainline problems with that?
    Thanks in advance...

  2. #2
    Senior Member
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    I don't know why you'd want to do it but it's rather simple. 9-speed hubs will take a 7-speed cassette along with a 4.5 mm spacer to fill in the extra width. The spacers are available at some bike shops and by mailorder at Bike Tools Etc. among others. You will need 7-speed (or friction) shifters too.

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