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  1. #1
    Senior Member toldey's Avatar
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    Rethreading quill bolt?

    I had forgotten that there was a bike mechanics category after I posted in the singlespeed/fixed forum. I figured this would be a more ideal place to post. I apologize in advance if this was covered already. Anyways, I need to trim a good portion of the quill on my stem in order for it to fit properly in my frame. (as you can see in the pic) However, I took it out to do some measuring and see where I would have to cut it to have it fit and it seems that the bolt isn't threaded where I would need it to be threaded. Is it possible to rethread the bolt with a die? I have a buddy who owns a shop and has the right tools to do so but have any of you guys done this before? Rethread the bolt that connects to the wedge?

    Thanks guys,


  2. #2
    Senior Member Torchy McFlux's Avatar
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    Don't think I'd be willing to do that for myself, never mind recommending someone else do it.
    If you can't find a compatible shorter quill bolt, I'd suggest just replacing the stem.

  3. #3
    Senior Member SweetLou's Avatar
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    It shouldn't be a problem as long as the bolt has cut threads. If it has rolled threads, then no. But that is a nice looking stem in a nice long height like I have been looking for.

  4. #4
    Senior Member toldey's Avatar
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    yeah, somebody filled me in with a little info on cut threads and rolled threads. hopefully, the LBS has those bolts tomorrow..

  5. #5
    Senior Member Joshua A.C. New's Avatar
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    Wasn't this covered, like, Monday?

    Are the threads, in fact, rolled? If you checked and they are, then yeah, you'd need to replace the bolt. Or, I suppose, roll new threads if maybe you know someone with a machine shop.

    If they're cut, go at it with a die.
    Joshua A.C. Newman,
    Passionate lover of construction

  6. #6
    Senior Member SweetLou's Avatar
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    Or, get a new stem and give me that nice long one.

  7. #7
    Senior Member toldey's Avatar
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    think i may just sell it and try to get a shorter stem..$45 brand new nitto deluxe, 80mm reach, 26.0 clamp. somebody take this off of me

  8. #8
    tinker madman451's Avatar
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    I've extended the threads on on a quil stem bolt before ad it worked fine. As long as the die is sharp, you should get good threads. (I think it is 8m x 1.25) Just test its fit and strength befre you ride it.
    Reduce. Reuse. Recycle. In that order.

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