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  1. #1
    mnoutain bkie rdier
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    What the heck is this??

    See the wire featured in the back of the pic? What is it for?
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  2. #2
    mtbr member
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    Flossing. Shimano takes dental hygiene very seriously.

  3. #3
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    Look in the Shimano instructions. Its a safety wire you use on the bolts for your brakes. Wire goes through the holes ion the bolt heads a specific way and then you twist the ends to prevent your bolts from backing out if they get loose

  4. #4
    mnoutain bkie rdier
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    Quote Originally Posted by shanem View Post
    Look in the Shimano instructions. Its a safety wire you use on the bolts for your brakes. Wire goes through the holes ion the bolt heads a specific way and then you twist the ends to prevent your bolts from backing out if they get loose
    I wonder why shimano feels this is necessary. I have never seen it before and have never heard of bolts backing out if tightened (thread locked) appropriately.

    Ideas??

    FWIW...I will be using this on the REAR brake. Shimano instructions ONLY mention issue with fork...

    See page 9 here:
    http://www.bbinstitute.com/dl/dx_demo_chapter_37.pdf
    Last edited by rydbyk; 01-18-2012 at 12:02 PM.

  5. #5
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    Brake bolts can loosen but but my guess is that they include these so they don't get sued by some idiot that doesn't know how to install bolts to proper spec. Its Shimano taking every step to cover their own ass. I've never used them on Shimano brakes. Thread lock, proper torque, and routine checking works fine for me.

  6. #6
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    More commonly used in moto, street bikes see the most of it when they're getting in track time. I think it's silly on bicycles but whatever. It IS safer.

  7. #7
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    Explain the SINGLE sets of conical washers...

  8. #8
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    I use loctite and safety wire on all brake hardware including rotors. Some folks use just loctite and some folks use neither. To each their own.

    My experience is that brake vibration has a tendency to loosen thing up so it is a good candidate for secondary retention.

  9. #9
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    Quote Originally Posted by Stevoo View Post
    I use loctite and safety wire on all brake hardware including rotors. Some folks use just loctite and some folks use neither. To each their own.

    My experience is that brake vibration has a tendency to loosen thing up so it is a good candidate for secondary retention.
    Yup..... I only use loctite but last summer my front brake bolts got loose...still only use loctite, cause I have used that wire all up for all sorts of things...

  10. #10
    Nouveau Retrogrouch SuperModerator
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    Quote Originally Posted by grandsalmon View Post
    Explain the SINGLE sets of conical washers...
    The faces of the bracket do not look parallel
    mtbtires.com
    The trouble with common sense is it is no longer common

  11. #11
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    Yup, safety wire. I use it everywhere on my motorcycles (road race)... its a requirement from the race orgs, and i wouldn't run without it. Motorcycles vibrate bolts loose all the time, so safety wire is a must.

    That said, on a bicycle, IMO its total overkill. Silly.

    Sent using Tapatalk

  12. #12
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    Quote Originally Posted by shiggy View Post
    The faces of the bracket do not look parallel
    Introduce another axis of adjustment on one end of post, what happens to the other?

  13. #13
    mnoutain bkie rdier
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    Quote Originally Posted by grandsalmon View Post
    Introduce another axis of adjustment on one end of post, what happens to the other?
    terrible disgusting things

  14. #14
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    Quote Originally Posted by rydbyk View Post
    terrible disgusting things
    You funny guy- LOL

    ironically, in truth, would be; mistracking of pad to rotor, out of plane when torqued...

    The corresponding faces of adapter are in plane w one another

    Last edited by grandsalmon; 01-18-2012 at 03:50 PM.

  15. #15
    official eMpTyBRain
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    Every heard about tying a string into a bow on your finger to help you remember something???

    Shimano supplies this to tie onto your finger to help remind you to squeeze the brake lever when you wanna slow down.

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