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  1. #1
    TWilkins
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    Shimano 105 STI Shifters

    Does anybody know of a source of a drawing that will show me how the brake cables are attached to Shimano 105 STI's? I need to replace a brake cable, and without removing the bar tape and taking the shifter off, can't tell if it's something I want to mess with or just let the LBS handle.

    Anything you can share will be appreciated!

  2. #2
    Senior Member Ebbtide's Avatar
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    GO to the shimano site, they have some fairly detailed schematic / user manuals. Yes, you can do this yourself. They slide right on and off, no biggie.

  3. #3
    Senior Member capwater's Avatar
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    Piece of cake, just did it 2 days ago. Depress the lever and you'll be looking right at the end of the cable, little round end about 1/8" in diameter.'

  4. #4
    Bananaed Brillig's Avatar
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    Quote Originally Posted by capwater
    Piece of cake, just did it 2 days ago. Depress the lever and you'll be looking right at the end of the cable, little round end about 1/8" in diameter.'
    As long as you understand the other end of it, which is a little more complicated if you don't know what you're doing.
    If once a man indulges himself in murder, very soon he comes to think little of robbing; and from robbing he comes next to drinking and Sabbath-breaking, and from that to incivility and procrastination.
    - Thomas De Quincey

  5. #5
    Senior Member sydney's Avatar
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    Quote Originally Posted by Brillig
    As long as you understand the other end of it, which is a little more complicated if you don't know what you're doing.
    What's complicated or hard to understand about the attachment to the brake caliper?

  6. #6
    Bananaed Brillig's Avatar
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    Quote Originally Posted by sydney
    What's complicated or hard to understand about the attachment to the brake caliper?
    I knew someone was going to ask that.

    Nothing, really. But if you've never done it before you need to know how to adjust tension. Also, depending on the reason for this you might need to know how to size casing.

    Not rocket science but it needs some explanation the first time.
    If once a man indulges himself in murder, very soon he comes to think little of robbing; and from robbing he comes next to drinking and Sabbath-breaking, and from that to incivility and procrastination.
    - Thomas De Quincey

  7. #7
    Member
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    is there a brake adjustment barrel or something at the levers? When I engage the brake, I see two screws exposed, one of them looks to go right above the cable stop, is that for doing tension adjustments or can I only do it on the adjustment barrel of the caliper brakes themselves?

    when I went on the shimano site, it looks as if you have to do it with shims? downloading and looking at their PDF specs right now.

  8. #8
    Senior Member
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    Is your cable housing worthy of a new cable?

  9. #9
    Elitist Troglodyte DMF's Avatar
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    Quote Originally Posted by avisualperson View Post
    is there a brake adjustment barrel or something at the levers?
    No. It's at the caliper.

    When I engage the brake, I see two screws exposed, .
    On the lever? Leave them alone. They have nothing to do with the brake.
    Stupidity got us into this mess - why can't it get us out?

    - Will Rogers

  10. #10
    Senior Member Doug64's Avatar
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  11. #11
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    Quote Originally Posted by capwater View Post
    Piece of cake, just did it 2 days ago. Depress the lever and you'll be looking right at the end of the cable, little round end about 1/8" in diameter.'
    Also, don't forget to swing the shift/brake levers all the way towards the stem (as noted in the Shimano instructions) before depressing the lever. This allows the brake lever to be pushed in farther, making it much easier to get at the brake cable. I forgot to do this on my Ultegra levers a while back, and ended up having to ask for help here, when I should have RTFM'ed.

  12. #12
    Member
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    thanks Doug64, looked at that document and ya, looks like the only adjusting can happen at the caliper. there is some looseness on the line that I was trying to get rid of; will just have to redo it at the brake end.

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