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Old 10-23-2013, 05:15 PM   #1
mikesova OP
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Holes drilled in Swingarm, bad or no big deal?

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:



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

Thoughts?
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Old 10-23-2013, 05:36 PM   #2
whisperquiet
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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
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Old 10-23-2013, 06:03 PM   #3
kartl
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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.
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Old 10-23-2013, 06:04 PM   #4
kubiak
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i would tap it and run a bolt in it. or weld and put a sticker over it.
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Old 10-23-2013, 06:09 PM   #5
jeffjones
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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
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Old 10-23-2013, 06:09 PM   #6
larryboy
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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.
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Old 10-23-2013, 06:11 PM   #7
Auto-X Fil
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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.
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Old 10-23-2013, 06:15 PM   #8
stainlesscycle
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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.
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Old 10-23-2013, 06:19 PM   #9
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Quote:
Originally Posted by jeffjones View Post
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
+1
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Old 10-23-2013, 06:19 PM   #10
ZEmann
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the PO was a Moron can u imagine passenger pegs on a swing arm

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
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Old 10-23-2013, 06:23 PM   #11
jeffjones
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Quote:
Originally Posted by ZEmann View Post
the PO was a Moron can u imagine passenger pegs on a swing arm

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
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.
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Old 10-23-2013, 06:25 PM   #12
viverrid
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Originally Posted by ZEmann View Post
the PO was a Moron can u imagine passenger pegs on a swing arm

but I agree at least the holes are up top I wouldn't be concerned
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.
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Old 10-23-2013, 06:30 PM   #13
ZEmann
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Originally Posted by viverrid View Post
At least he knew to put the holes toward the top. .
I think your giving Him way tooo much credit?

thats just where the drill bit landed

PS your an inspiration to Me with the way you handle your battle !
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Old 10-23-2013, 06:31 PM   #14
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Originally Posted by ZEmann View Post
can u imagine passenger pegs on a swing arm
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!

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Old 10-23-2013, 06:41 PM   #15
tonusmaximus
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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!

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