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Creaking KH cranks

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01 / Original postCreaking KH cranksmazem · 25 Jun 2004 02 / This pagePosts 1–11Page 1 of 1 · chronological order 03 / Latest replyPost #11mazem · 27 Jun 2004

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rec.sport.unicycling
Published
25 June 2004
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27 June 2004
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mazem
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  1. Original post
    mazem
    Archived post
    #1

    I just build myself a a MUni, but after the first few days of
    trailriding there is a recurring creaking and looseness of the left KH
    crank.

    At first I thought it was the spokes since I laced them up and trued the
    wheel myself to fit a KH hub to a 26"er, but now I am pretty sure it is
    the crank since tightening it up always makes the sound go away - for a
    little while. Then after a few miles of trails the creaking comes back.
    I tried tightening it pretty tight (3 fingers pulling), but I am afraid
    of overtightening and damaging the crank.

    If I can find a mic I will record the sound and post it, but until then
    it is a med-high pitched creeeak whenever I press the pedal.

    Anyways, has anyone had this sort of experience with KH cranks? Is it
    natural when they are new to loosen up a bit? Could mine be defective?

    --
    mazem - Department of Redundancy Dept.
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  2. Robbie
    Archived post
    #2

    Eeep... you're not meant to tighten them more than 3 fingers pulling?

    --
    Robbie - Spoons Taste Good

    And how is education supposed to make me feel smarter? Besides, every
    time I learn something new, it pushes some old stuff out of my brain.
    Remember when I took that home winemaking course, and I forgot how to
    drive? - Homer Simpson
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  3. andrew_carter
    Archived post
    #3

    Well it all depends on the length of your lever now doesn't it.

    Andrew

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  4. Robbie
    Archived post
    #4

    Normal sized allen key... your not meant to go tight as possible?

    --
    Robbie - Spoons Taste Good

    And how is education supposed to make me feel smarter? Besides, every
    time I learn something new, it pushes some old stuff out of my brain.
    Remember when I took that home winemaking course, and I forgot how to
    drive? - Homer Simpson
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  5. one wheeled stallion
    Archived post
    #5

    I think you need to tighten the pinch bolts up TIGHT. I have done this
    on mine with no problem. Go to unicycle.uk.com, they have a section on
    splined cranks and hubs which also covers maintainence.

    --
    one wheeled stallion - Guerilla Unicyclist

    OWS

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  6. mango
    Archived post
    #6

    a lil anti-seize on my splines fixed my creaking KH.

    --
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  7. pete66
    Archived post
    #7

    Yeah I had the same thing, a bit of greese in there will fix it.

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  8. john_childs
    Archived post
    #8

    You just need to put some anti-seize on the splines and on the bolt
    threads. Then tighten everything up and you should be fine. No more
    squeaking. You'll have to check the bolts a couple times after this
    maintenance routine to make sure they stay tight. But after that they
    should settle in and stay tight for the most part.

    See the first page of this thread: 'Problem with KH-24'
    (http://tinyurl.com/33qup) for the details on lubing it up and
    tightening the bolts.

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  9. mazem
    Archived post
    #9

    Ahh thanks. I will get some anti-seize tomorrow. Also that link was
    great - now I know I'm not the only one who had to even out the frame
    with a shim (with a Yuni frame you get what you pay for, eh?). Its kinda
    bothesome that torqued out frames are so prevalent though. This stuff
    would never fly in any other industry.

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  10. john_childs
    Archived post
    #10
    mazem said:

    *Ahh thanks. I will get some anti-seize tomorrow. Also that link was
    great - now I know I'm not the only one who had to even out the frame
    with a shim (with a Yuni frame you get what you pay for, eh?). Its
    kinda bothesome that torqued out frames are so prevalent though. This
    stuff would never fly in any other industry. *

    Roger's 'frame bending FAQ' (http://www.unicycle.uk.com/bend.asp) should
    show you how to bend the frame so that it's all square. Then you'll be
    able to get rid of the shim.

    Part of the problem with the frames is that they're designed to fit a
    specific hub width. If you try to fit them on a hub with a different
    width then they can get a bit wonky and out of square. The fix is to
    bend them to make them fit the new hub. The other problem with the
    frames is that they are not carefully made so some of them are not nice
    and square to begin with.

    --
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  11. mazem
    Archived post
    #11

    Thanks for the link, but I don't think I'll be doing any frame bending
    soon. I got lucky - with the shim in place the wheel is dead center in
    the frame. If I bent it I doubt I could get it this good, and theres
    always the chance I would accidentally damage or break it.

    --
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