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  1. #1
    mtbr member
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    Jul 2008
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    Shorten / Cut Shimano Deore Hydraulic Rear Brake Line

    Hey all,

    I have a pair of 525 Deore hydraulic disc brakes. My rear cable is too long, so I'd like to shorten it. Has anyone done this? I would prefer to shorten without bleeding, but I am willing to bleed the brakes if that's the only way to do it. My main concern is having to replace any parts that are in the caliper or lever cylinder (which ever end is best to shorten from). Shimano's manual's say nothing about this, and I couldn't find any mtbr threads on this.

    Thanks in advance!

  2. #2
    Nightriding rules SuperModerator
    Reputation: crisillo's Avatar
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    Jul 2004
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    you will need a new olive and insert...if you keep the lever level and don't wiggle the hose too much while cutting, you should be able to cut it without needing to bleed.

    anyhow, bleeding shimanos is easy, so no worries..

  3. #3
    local trails rider
    Reputation: perttime's Avatar
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    Aug 2005
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    11,861
    I have LX (M585) brakes on the new bike and, so far, have left the extra rear hose looped around the steerer tube: the slack that I have is enough for that.

  4. #4
    mtbr member
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    Yup, it looks like I need this:
    http://store.airbomb.com/ItemDesc.asp?IC=BR0731

    I took the hose out last nite and tried to cheat by removing the olive and connector insert; no dice, neither would budge. Thanks for the reply!

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