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  1. #1
    RoadBikeReview Member
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    Internal cable routing

    I have an 83 vintage steel internal cable routed frame I'm building up. I'm looking for some direction as to how the derailleur cables are routed through the BB. My bike has a 3mm hole in the chain stay BB area for the FD cable to exit. I'm wondering if anything special is done here. I have in my mind over time the cable rubbing against the edge of the hole will cut into the base metal. How's yours?

  2. #2
    a real member's member
    Reputation: blackfrancois's Avatar
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    unless it causes a known problem, i always go with the designer's intentions.
    Yossarian: don't worry. nothing's going to happen to you that won't happen to the rest of us.

  3. #3
    WA outdoor enthusiast
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    Which manufacturer was internally routing FD cable in 1983?

    Does it have downtube shifters?

    Pics are invaluable.

  4. #4
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    Here's a couple of pictures.




  5. #5
    WA outdoor enthusiast
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    Well, you won't be getting a piece of housing in that tiny hole in the NDS chainstay.

    On the positive side, the tension on a FD cable shouldn't be enough to damage a chromed tube. I would be more concerned about the derailleur cable becoming abraded.

  6. #6
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    I' going to get some delran? and just use it right there. I may end up re finishing the frame if so, I'll add a tube with a bend in the bottom bracket.

  7. #7
    Out riding.
    Reputation: 1500SLR's Avatar
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    You're going to have fun with cables and fitting a bottom bracket. I know I did with my custom build. It's doable but its a bit of a nightmare and you're not going to want to ever swap your bottom bracket once you've got cables in there also.


  8. #8
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    Will the Shimano cable liner fit?

  9. #9
    Out riding.
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    The cables will fit inside the bottom bracket it won't be easy for you to get your bottom bracket in once you're done though.

  10. #10
    RoadBikeReview Member
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    most times the cables will go above the BB. You just have to remember to run the cables before installing the BB. They are a huge pain in the ass but I have always loved the look of routed cables.

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