how to fix this?  RSS Feed

#1 2013-01-05 8:34pm

dude!
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From: Kuala Lumpur, Malaysia
Registered: 2010-02-28
Posts: 157

how to fix this?

hye  there,
i get this handlebar  from my friend ,it have been press hardly by stem.....
http://i1278.photobucket.com/albums/y511/haikalrahim/DC177C8D-8D93-4446-815F-09F283FE0344-1737-000000773EE458A0_zps0a70f001.jpg

http://i1278.photobucket.com/albums/y511/haikalrahim/9442A1D9-39DC-4389-88FF-B10120BDC727-1737-0000007734D9912A_zps1227648f.jpg

anyone?


wanted - GT Powerseries stems and chainwheel

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#2 2013-01-06 3:09am

coasty
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From: Queensland, Australia
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Re: how to fix this?

Pretty much stuffed.


70's bmx is where it's at.

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#3 2013-01-06 3:20am

Lewis
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From: Tasmania, Australia
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Re: how to fix this?

I did see a trick recently in auto repairing dents were you weld large washes as pulling points you could try welding washers 180 degrees to each other and try to pull out the depressed area???

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#4 2013-01-06 3:48am

coasty
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From: Queensland, Australia
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Re: how to fix this?

I've always wondered if you could heat the area and use air pressure to "blow out" the crushed area? Would be a bit hit and miss though.


70's bmx is where it's at.

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#5 2013-01-06 6:16am

Darkseacret
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Re: how to fix this?

If your trying to keep and still use you can cut up a 12 oz drink can in a strip and use it for a thin shim .Wrap it aound bar enough times until you get enough bite.

Last edited by Darkseacret (2013-01-06 6:17am)

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#6 2013-01-06 6:25am

dedmann
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Re: how to fix this?

push a bunch of steel balls the exact size through the tubing? good luck


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#7 2013-01-06 6:41am

killer
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From: Middle earth, Canada
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Re: how to fix this?

I would fill the very lower portion of the bars with water and freeze them standing up right.


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#8 2013-01-06 6:43am

rocs8x9x
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From: Appleton, WI
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Re: how to fix this?

killer wrote:

I would fill the very lower portion of the bars with water and freeze them standing up right.

Dud you ever try this? Interesting idea


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#9 2013-01-06 7:07am

The1980s
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From: Music City
Registered: 2012-06-29
Posts: 268

Re: how to fix this?

killer wrote:

I would fill the very lower portion of the bars with water and freeze them standing up right.

I was thinking this same thing. Not sure how it would work. The steel ball trick would work if u could do it.


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#10 2013-01-06 11:22am

JeF
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From: San Francisco, CA
Registered: 2008-09-25
Posts: 1218

Re: how to fix this?

I'm gonna say your best bet is the shim idea, which ultimately will crimp the bar even more. But I'm thinking with all the other solutions it will just crumple again once you tighten the stem

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#11 2013-01-06 1:03pm

jsngrimm
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From: Cuyahoga Falls, OH
Registered: 2012-05-03
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Re: how to fix this?

rocs8x9x wrote:

killer wrote:

I would fill the very lower portion of the bars with water and freeze them standing up right.

Dud you ever try this? Interesting idea

+1 I like this idea, if you really want to save the bars I would try it. Has anyone else ever done this? Sounds like it would work


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#12 2013-01-06 6:56pm

dedmann
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Re: how to fix this?

i would imagine you would have to cap or constrict the bar ends to keep the pressure/expansion inward.


PLEASE RESPECT CHAT OR I"LL BOOT YA WITH A WARNING!
varokaa tyhmät ympärilläsi - tai tullut yksi[img]http://www.pic4ever.com/images/meditationf.gif[/img]
"There are very few accomplishments of any value that can be gained without practice, and that which takes the least time to learn is usually the least valuable when learned."                               -The Eagle Bicycle Co. catalog 1890-
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#13 2013-01-06 7:04pm

myone
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From: S. Paterson, NJ
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Re: how to fix this?

Just bend the other side and make it the same size!!!!


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#14 2013-01-06 11:49pm

dude!
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From: Kuala Lumpur, Malaysia
Registered: 2010-02-28
Posts: 157

Re: how to fix this?

i got the same idea to push a steel ball inside, but currently wanna try to freeze it... hope its working....... roll


wanted - GT Powerseries stems and chainwheel

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#15 2013-01-07 12:31am

markmc97225
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From: Beaverton, OR
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Re: how to fix this?

You can't get steel balls in there the right size, the ID loses diameter when it bends. So, they won't pass thru the bends.

I've heard some guys are skilled enough on door panels to use heat/cold to reset a metal. Alternate the hot/cold. The stretching/contracting in multiple succession can reset the metal to original size. Could be unban legend however.


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#16 2013-01-07 7:37am

killer
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Re: how to fix this?

rocs8x9x wrote:

killer wrote:

I would fill the very lower portion of the bars with water and freeze them standing up right.

Dud you ever try this? Interesting idea

I haven't tried it but I wouldn't fill the bars completely. They may split.
A  bearing would work but more than likely the weld penetration from the cross bar will not let it pass.


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#17 2013-01-08 2:56pm

dude!
Centurion Member
From: Kuala Lumpur, Malaysia
Registered: 2010-02-28
Posts: 157

Re: how to fix this?

markmc97225 wrote:

You can't get steel balls in there the right size, the ID loses diameter when it bends. So, they won't pass thru the bends.

I've heard some guys are skilled enough on door panels to use heat/cold to reset a metal. Alternate the hot/cold. The stretching/contracting in multiple succession can reset the metal to original size. Could be unban legend however.

i already try to heat and use some ice to cold it down.... it working... but it  too slow... i think it is the best way... but i already stop since i think it will made the steel easy to crimp again.... hermmmm roll

as long my stem can grip it.. it good enough


wanted - GT Powerseries stems and chainwheel

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#18 2013-01-08 2:57pm

dude!
Centurion Member
From: Kuala Lumpur, Malaysia
Registered: 2010-02-28
Posts: 157

Re: how to fix this?

killer wrote:

rocs8x9x wrote:

killer wrote:

I would fill the very lower portion of the bars with water and freeze them standing up right.

Dud you ever try this? Interesting idea

I haven't tried it but I wouldn't fill the bars completely. They may split.
A  bearing would work but more than likely the weld penetration from the cross bar will not let it pass.

yes.. the bend area is quite small... i think its not a good idea.. the ball will stuck...



any idea?


wanted - GT Powerseries stems and chainwheel

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