XTR brakes need bleed every ride- Mtbr.com
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  1. #1
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    XTR brakes need bleed every ride

    I've got a set of XTR brakes that need bleeding every ride. They get mushy and I get air out from the lever every time. I don't see any leakage anywhere. Is there a bladder or something in the lever body that probly has a pin hole? New lever or lever & caliper?

  2. #2
    since 4/10/2009
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    how old are they? XTR bits have a 3yr warranty, fwiw.

  3. #3
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    More than 3, about 5yr

  4. #4
    Short-Change-Hero
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    Lever could be failing, caliper could be failing, line(s) could have pin holes. When was last time they had a full bleed/flush?

  5. #5
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    Quote Originally Posted by gregnash View Post
    Lever could be failing, caliper could be failing, line(s) could have pin holes. When was last time they had a full bleed/flush?
    A few months.

    Sent from my SM-G970U using Tapatalk

  6. #6
    Short-Change-Hero
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    Quote Originally Posted by brado View Post
    A few months.

    Sent from my SM-G970U using Tapatalk
    So a few months ago you did a complete fluid change and this is when the issue started? Using Shimano fluid or off-brand? Have read that the brand does tend to cause issue if not Shimano branded stuff.

  7. #7
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    It's been an issue for a long time, before the fluid change. Shimano oil.

  8. #8
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    Does the piston area where the lever actuates have oil build up?

    Both my XTRs had a slow leak from there and I needed to burp air from the lever every few weeks. Eventually the seals in one of the levers just failed and the lever needed to be replaced. My friend's Shimano levers are doing the same thing and he needs to bleed them constantly.

  9. #9
    Elitest thrill junkie
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    Shimano are throw-away-brakes. Your seals sound shot. The design of the brakes accelerates wear on these and shimano doesn't sell seal-kits. Shimano doesn't sell seal kits because F-you riders. Welcome to brakes in 2019.
    "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth

    You're turning black metallic.

  10. #10
    Trail Gnome
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    ^^^Jayem speaks the truth.

  11. #11
    WillWorkForTrail
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    Time for some Maguras I guess.

  12. #12
    Just a flesh wound
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    I have had great luck with Shimano brakes. The fluid is not DOT, so it does not absorb water. But a full bleed every thousand miles can't hurt. Air the way you describe is from a leak. Might be a seal. Might be a leak at the reservoir.
    My name is Chris and I ride a Ripmo now.

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