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Thread: Axle nut split pins?

  1. #1
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    Axle nut split pins?

    Oblique question I know...but : How come dirt Bikes come with a split pin or similar to lock the back axle nut from coming off and road bikes don't ?

    Road Bikes never have but Dirt bikes always have...and why not the front wheel too ?

    And, I've never heard of an axle nut coming off period , enlighten me if you will .

  2. #2
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    Not true.
    Road bikes have had split pins in the rear axle nut. My first one certainly did.
    I guess it's commoner in dirt bikes because they're subject to more bumps'n'jumps'n'stresses'n'strains.
    Road bikes more commonly have locking nuts.

    Excepting for my VFR. That has a large locking nut on the axle, and four (4!) chromed acorn nuts (stolen from a squirrel) holding the wheel on. More shecksie ones have a single nut and locking on holding the wheel on.
    ... and that's what I think.

    Or summat.


    Or maybe not...

    Dunno really....


  3. #3
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    not sure about other bikes but Buells have locking bolts that are under the axle to secure for the rear and has two locking bolts on each of the front forks to secure the axle

  4. #4
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    because adam split who invented the split pin also was involved with jawa in the early 20s

  5. #5
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    Mine has split pin. Must be cos she vibrates so much lol

  6. #6
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    Quote Originally Posted by vifferman View Post
    Not true.
    Road bikes have had split pins in the rear axle nut. My first one certainly did.
    I guess it's commoner in dirt bikes because they're subject to more bumps'n'jumps'n'stresses'n'strains.
    Road bikes more commonly have locking nuts.

    Excepting for my VFR. That has a large locking nut on the axle, and four (4!) chromed acorn nuts (stolen from a squirrel) holding the wheel on. More shecksie ones have a single nut and locking on holding the wheel on.
    Totally acknoweledge the bumpy jumpy thing but road bikes have a similar dilemma of course, and they have a lot more power and the stresses and strains must be threefold ...no ?

  7. #7
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    Quote Originally Posted by Armitage Shanks View Post
    Oblique question I know...but : How come dirt Bikes come with a split pin or similar to lock the back axle nut from coming off and road bikes don't ?
    Some of my road bikes do, they were made in the eighties though
    "If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."


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  8. #8
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    My ZX6 has a locking clip on the axle nut, maybe your split pin fell out.

  9. #9
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    My road bike has an axle nut split pin.Most bikes have some sort of locking device on their rear wheels.

  10. #10
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    Most bikes have them .Loss of rear wheel not recommended.
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  11. #11
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    I know of one that has fallen off and one that came loose.
    Mostly road bikes have a lock nut of some kind, though not necessarily a split pin.
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  12. #12
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    Quote Originally Posted by Starky307 View Post
    My ZX6 has a locking clip on the axle nut, maybe your split pin fell out.
    I must have an anomolay , my 2 year old Hayabusa has no provision for a locking clip and seemingly that was a design decision ? Why would your ZX6 have a clip when my bike does'nt , given the huge difference in HP's, weight and stresses combined....?

  13. #13
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    Quote Originally Posted by Armitage Shanks View Post
    I've never heard of an axle nut coming off period , enlighten me if you will .
    "It won't happen overnite, but it does happen".
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  14. #14
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    Quote Originally Posted by Armitage Shanks View Post
    I must have an anomolay , my 2 year old Hayabusa has no provision for a locking clip and seemingly that was a design decision ? Why would your ZX6 have a clip when my bike does'nt , given the huge difference in HP's, weight and stresses combined....?
    Your Hayabusa has probably got Nylock nuts on the axels instead of a pin. Both are just safety features.
    Nothing exceeds like excess.

  15. #15
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    it seams to be hit and miss some bikes do some bikes don't

    some bikes have them from one country to next, i know my gsxr 600 k4, has has no split pin, but the same model in the usa does.


    Its not to hard to modify you current one to have a split pin if you so wish

    I am pretty sure father in laws k4 hayabusa had a split pin but his 08 does not

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