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  1. #1
    mtbr member
    Reputation: shanem's Avatar
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    Apr 2008

    Disconnecting Shimano brakes without bleeding

    Can I disconnect my Shimano brakes and hook the back up without bleeding? I'm talking about disconnecting the hose right where it attaches to the caliper? Just wondering as I just bought a new bike and the rear brake hose is routed through the frame. I want to swap out the XTs for my XTRs but you can't get the brakes without either, cutting the hose, disconnecting the hose, or removing the rear end of the bike.

  2. #2
    mtbr member
    Reputation: Rock's Avatar
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    Jan 2004
    I did it with Formula brakes before, but that was just to shorten the hose at the lever end and not at the caliper end. I didn't have to snake it through anything, just cut, insert the metal barb thing and slide the olive over the end. It seems to me that having to work it through the frame would get air in the system somehow.
    How can anyone who's been riding as long as I have, be so slow???

  3. #3
    mtbr member
    Reputation: mack_turtle's Avatar
    Join Date
    Jan 2009
    if you're lucky, it will work. if you disconnect the hose and don't wiggle it too much and don't touch the lever, the hose probably won't get any bubbles in it. i don't guarantee that, but it can be done.

  4. #4
    mtbr member
    Join Date
    Sep 2008

    Re: Disconnecting Shimano brakes without bleeding

    You'll most likely have to bleed them. It can be done at the lever end since the reservoir is there. If you try it, make sure the hose is the highest point and none spills out of the caliper.

    Sent from my S3 on the way to the trailhead.

  5. #5
    mtbr member
    Reputation: mack_turtle's Avatar
    Join Date
    Jan 2009
    yes, disconnect it at the lever, not the caliper. you have a better chance of being successful at the lever.

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