Holes drilled in Swingarm, bad or no big deal?

Discussion in 'The Garage' started by mikesova, Oct 23, 2013.

  1. mikesova

    mikesova Michigander

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    Hey guys,

    I am looking at a bike, an XR250r, that is in good shape, however, the PO had drilled holes in the sides of the swingarm to mount pegs. Here's a picture:

    [​IMG]

    I'm just wondering if that would mess with the integrity of the aluminum swingarm?

    Thoughts?
    #1
  2. whisperquiet

    whisperquiet Long timer

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    I wouldn't run the swing arm with two holes drilled through.......but, there are several on EBay for less than $30.00. FYI
    #2
  3. kartl

    kartl Adventurer

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    A simple hole can damage the engineering design of a part. it would be better to replace it if you have decided to purchase it. The hole could be the cause of relocating the plate number.
    #3
  4. kubiak

    kubiak Long timer

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    i would tap it and run a bolt in it. or weld and put a sticker over it.
    #4
  5. jeffjones

    jeffjones "offroad shit"

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    come on really?? its an xr250, i'll doubt anyone riding it will be jumping 40 ft doubles..

    if it ever develops a crack from normal trail riding i'd be very surprised and then it it did, weld it up and it'll be good as new...

    I've seen very few swingarm failures in the many years as a mx racer and motorcycle tech.. The couple i've had were from hits that taco'd the rear rim to uselessness and the swinger crack was welded and sky'd over 90ft quads over and over again..

    imho don't worry about those little holes
    #5
  6. larryboy

    larryboy Chopper Rider

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    I'd insert a sleeve in it and weld it, only way to return structural integrity to it. Might cost more than another swingarm if your not a welder.

    Bottom line, I wouldn't ride it as is.
    #6
  7. Auto-X Fil

    Auto-X Fil Been here awhile

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    It's on the top of the arm, which is loaded in compression, not tension. I'd chamfer the hole with a smooth radius and forget it.
    #7
  8. stainlesscycle

    stainlesscycle Long timer

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    put a sticker over the hole. good as new. structural integrity? there's so many things that will fail before that swingarm.
    #8
  9. tkent02

    tkent02 Long timer

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    +1
    #9
  10. ZEmann

    ZEmann want to be riding

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    the PO was a Moron can u imagine passenger pegs on a swing arm :rofl

    but I agree at least the holes are up top I wouldn't be concerned

    like I would be if they were at the bottom 1/3
    #10
  11. jeffjones

    jeffjones "offroad shit"

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    that is right, i can picture the passengers legs going up and down over a bumpy road... up and down up and down... wonder if the knees would get worn out like a rear tire.
    #11
  12. viverrid

    viverrid not dead yet

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    At least he knew to put the holes toward the top. Hopefully he was only using the pax pegs for slow speeds on smooth surfaces. For the good of the passenger's foot bones.
    #12
  13. ZEmann

    ZEmann want to be riding

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    I think your giving Him way tooo much credit?

    thats just where the drill bit landed :lol3

    PS your an inspiration to Me with the way you handle your battle !
    #13
  14. *Gmoney*

    *Gmoney* Long timer

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    Some hot chick wearing a G-string riding on your swing arm.
    Sounds like a bike porn movie to me.


    I think he should buy it, and post the videos on here!

    :wink:
    #14
  15. tonusmaximus

    tonusmaximus maximus

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    I was teaching GF to ride an '82 SP250 with pegs stock on the swingarm and as soon as she took off and my feet started folowing the bumps I freaked a bit! Whoa thats a bad design!

    Sent from my SPH-D700 using Tapatalk 2
    #15
  16. Dave in Wi

    Dave in Wi Long timer

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    Take a look at some old-school bikes, that's where they used to mount them

    On the holes.... It probably wouldn't hurt anything to ride it the way it is. But it would bug the sh*t out of me, and I'd always be wondering what other hillbilly engineering the PO did.
    #16
  17. larryboy

    larryboy Chopper Rider

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    Or a brand new Harley.
    #17
  18. kubiak

    kubiak Long timer

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    i had a few honda xl 600s that had factory pass pegs on the swingarm. they were weird when you are on the back!
    #18
  19. *Gmoney*

    *Gmoney* Long timer

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    I have at least 2 old bikes with foot pegs on the swing arm,
    and once you put a passenger on it was overweight, and did go that far up/down. That was why the Feds said.
    Strap on seat, or hand grip installed from factory, a place for un-sprung weight to hold on.
    Strap on seat, hand grips or G-strings, its all still bike porn.
    #19
  20. mcma111

    mcma111 Long timer

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    It's a steel swing arm. You could Swiss cheese it and not have a problem.
    #20