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  1. #1
    Newbie
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    Apr 2010
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    Klein Quantum Pro early 90's stem replacement

    I have an early 90's Klein Quantum Pro with an integrated stem, Dura-ace, and I love this bike. However, the stem is a 90 and I'd like an 80 cm. I read somewhere that the stem can be replaced with a threadless stem, but my LBM asked me to find out about converting so as to use a regular stem. Any ideas on conversion or where I might look to find the Klein intregrated stem/headpiece in an 80 that was only made for a year or two? Thanks. I'm 1 hour east of San Francisco. There is no Klein website anymore so no instruction manuals available.

  2. #2
    Senior Member
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    Apr 2006
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    Vero Beach FL
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    No ideas in either direction. Looks like they had some problems with some early ones http://docs.google.com/viewer?a=v&q=...khxdAzoYfj-PFw

  3. #3
    Senior Member
    Join Date
    Jul 2008
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    Knoxville, TN
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    Klein
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    maybe this technical manual will help.

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