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Thread: GS850/GS1000G front brake slider pin rubbers help needed

  1. #1
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    Default GS850/GS1000G front brake slider pin rubbers help needed

    Hopefully can pick someone's brains again

    Rebuilding my front brake calipers on my 1980 GS1000G and the rubbers on the slider pin on both calipers are shreaded. ( Same parts as a GS850)

    Have ordered replacements at best part of 50 for the 2.

    Part number AXLE, CALIPERS NO. 2
    59306-45200-000

    Parts have arrived but have no rubbers. Spoken to the dealer and parts are correct and come with no rubbers but rubber is not listed as a seperate part so cannot order them

    Is it ok to just not fit the rubber or is there a trick to use something else?

    Thanks Nick

  2. #2
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    Listed as separate part 59312-45200 (#11) here...


    https://www.partzilla.com/catalog/su...front-calipers
    Tom

  3. #3
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    It's not the rubber boot I'm missing pal. I have new ones of those.

    The slider pin itself has a rubber sleeve on it, over part of whats called the axle which is machined to take it. When you buy the pin it comes with no rubber just the pin and you cannot buy the rubber, hence not sure what to do, as no rubbers and cannot buy them 😟

  4. #4
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    Just found a pic of a 59306-45200 on ebay, and sure enough it comes w/out the rubber sleeve. That's just silly. Sorry Nick, I don't have an answer for you, just confirming what you got appears to, unfortunately for you, be correct.

    Last edited by Rich82GS750TZ; 07-09-2021 at 02:47 PM.

  5. #5
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    Yep - just what turned up!

    Sure I'm not the only one whose faced this - anyone come up with a fix?

    Thanks Nick

  6. #6
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    Yep, find a suitable section of silicone hose. I rummaged around fuel hoses and found something suitable. That bodge lasted for years until I got some low mileage calipers and reset the clock on the brakes.
    The wrong hose will swell and jam, causing sticky brakes. Only use red rubber grease.
    ---- Dave
    79 GS850N - Might be a trike soon.
    80 GS850T Single HIF38 S.U. SH775, Tow bar, Pantera II. Gnarly workhorse & daily driver.
    79 XS650SE - Pragmatic Ratter - goes better than a manky old twin should.
    92 XJ900F - Fairly Stock, for now.

    Only a dog knows why a motorcyclist sticks his head out of a car window

  7. #7
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    That's bonkers to supply a part then not supply the part that fits on it, I have stripped and rebuilt mine but I cannot remember the fitment of the rubber so I cannot advise on not using them without the rubber.
    but I feel your pain. A bit of suzuki madness.
    The big guy up there rides a Suzuki (this I know)
    1981 gs850gx

    1999 RF900
    past bikes. RF900
    TL1000s
    Hayabusa
    gsx 750f x2
    197cc Francis Barnett
    various British nails

  8. #8
    bwringer's Avatar
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    The only decent solution I've found is, as noted, scare up a low-mileage set of calipers on fleaBay. Lots of Suzukis used the same caliper bodies. Mine were getting pretty rattly at around 120,000 miles, and the bores seemed to be wearing, not the pins. I bought a lower mileage set and rebuilt those.

    Many sellers parting out a bike mention the mileage, but sometimes you can snoop around in their other auctions and see the mileage on the instruments from the same bike.
    1983 GS850G, Cosmos Blue.
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    Eat more venison.

    Please provide details. The GSR Hive Mind is nearly omniscient, but not yet clairvoyant.

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  9. #9
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    I will look in my stash and see if I can find some decent rubbers for you.

    V
    Gustov
    80 GS 1100 LT, 83 1100 G "Scruffy"
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    I seem to recall that the plastic sleeve used to swell up after prolonged contact with certain greases, and when that happened the caliper won't slide freely anymore leading to braking issues.

    Edit: is this the part? BUSH AXLE (59313-45200)

    https://www.motosport.com/oem-parts/...front-calipers
    Last edited by Nessism; 07-12-2021 at 02:13 PM.

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