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Thread: My stem size?

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    My stem size?

    Can anyone help me with finding my stem size? I have a circa 1992 Trek 930 mountain bike with a quill stem and I want to replace it. I removed the stem and looked but nothing stamped on it was immediately recognizable as a size. Anyone know for sure or know how I could find out?

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    Quote Originally Posted by Txthroop
    Anyone know for sure or know how I could find out?


    Ummm, yea. I am pretty sure you could measure it, with a ruler or something.

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    Senior Member Neil H's Avatar
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    130mmx22.2mm.

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    Tiocfáidh ár Lá jfmckenna's Avatar
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    I believe it is measured center to center. So from the center of the down stem tube to the center of the clamp that holds the handlebar.

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    OK. Knowing that the differences between sizes are small and that I've ruined more than my fair share of projects because I couldn't measure accurately I decided to ask around in hopes of finding someone who KNEW the answer. If I have to I'll take it to the LBS for comparison before I feel safe spending $ on a new one.

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    Whoops! I didn't see those other posts after the first one. Thanks for the help!

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