# Repairing KH flanges?

**URL:** https://unicyclist.com/t/repairing-kh-flanges/112629
**Category:** Unicycles and Equipment
**Created:** [October 17, 2010, 4:42pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629 "2010-10-17T16:42:56Z")
**Posts on this page:** 14
**Page:** 1

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### Author: ![jaco\_flans](https://unicyclist.com/user_avatar/unicyclist.com/jaco_flans/32/103351_2.png) [@jaco\_flans](https://unicyclist.com/u/jaco_flans)
#### Post date: [October 17, 2010, 4:42pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/1 "2010-10-17T16:42:56Z")

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Hi! I’m about to kill a second KH 2007 hub and right now I am totaly not able to buy a replacement. I would like to know if it would be a good ideal to weld the flanges before they break? My friend could weld it for me(for free!) so I am really thinking about it. I guess it wont affect it even if it doesn’t work. If it just make it lasts a little biy longer I’ll do it.

Thanks!

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### Author: ![saskatchewanian](https://unicyclist.com/user_avatar/unicyclist.com/saskatchewanian/32/1424_2.png) [@saskatchewanian](https://unicyclist.com/u/saskatchewanian)
#### Post date: [October 17, 2010, 9:30pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/2 "2010-10-17T21:30:41Z")

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You have nothing to loose. weld em up and let us know how they hold up.

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### Author: ![maestro8](https://unicyclist.com/user_avatar/unicyclist.com/maestro8/32/497_2.png) [@maestro8](https://unicyclist.com/u/maestro8)
#### Post date: [October 18, 2010, 4:44pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/3 "2010-10-18T16:44:13Z")

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> [@jaco\_flans](#):
>
> I guess it wont affect it even if it doesn’t work.

Your guess may or may not be correct, depending on the proficiency of your welder and the equipment he uses.

If done poorly you could change the temper of the metal. This might leave you with a brittle hub…

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### Author: ![jaco\_flans](https://unicyclist.com/user_avatar/unicyclist.com/jaco_flans/32/103351_2.png) [@jaco\_flans](https://unicyclist.com/u/jaco_flans)
#### Post date: [October 19, 2010, 2:11pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/4 "2010-10-19T14:11:41Z")

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Well, my friend knows how to weld, his welds aren’t really beautiful but they are solid. He welded my bike to get it fixed and I never got any problems with the weld. I’ll let him try on my broken hub and if it doesn’t affect the metal he will weld the “good” one.

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### Author: ![brendan](https://unicyclist.com/user_avatar/unicyclist.com/brendan/32/1309_2.png) [@brendan](https://unicyclist.com/u/brendan)
#### Post date: [October 27, 2010, 12:34am UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/5 "2010-10-27T00:34:50Z")

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get us some pictures!

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### Author: ![jaco\_flans](https://unicyclist.com/user_avatar/unicyclist.com/jaco_flans/32/103351_2.png) [@jaco\_flans](https://unicyclist.com/u/jaco_flans)
#### Post date: [October 27, 2010, 8:00am UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/6 "2010-10-27T08:00:31Z")

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My friend repaired it! It looks aweful but it looks strong! I`ll post pictures tonight and I`ll start riding it tonight also. But his welds are really ugly and huge!😛

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### Author: ![jaco\_flans](https://unicyclist.com/user_avatar/unicyclist.com/jaco_flans/32/103351_2.png) [@jaco\_flans](https://unicyclist.com/u/jaco_flans)
#### Post date: [November 4, 2010, 4:31pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/7 "2010-11-04T16:31:42Z")

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Well, I really suck at taking pictures:p I’ll try to get better ones next time I have light. It really looks like shit, but I think it should hold up for a while. I’ll do a review after a long time, also I’ll tell you guys if it ever breaks again.

 ![](https://unicyclist.com/uploads/default/original/3X/2/f/2f0984456f8dd47c5beb0a68b72c3d6cf62ef2aa.jpeg)  
 ![](https://unicyclist.com/uploads/default/original/3X/2/f/2f0984456f8dd47c5beb0a68b72c3d6cf62ef2aa.jpeg)

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### Author: ![knoxuni](https://unicyclist.com/user_avatar/unicyclist.com/knoxuni/32/2894_2.png) [@knoxuni](https://unicyclist.com/u/knoxuni)
#### Post date: [November 4, 2010, 4:32pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/8 "2010-11-04T16:32:59Z")

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looks like they should be strong

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### Author: ![brendan](https://unicyclist.com/user_avatar/unicyclist.com/brendan/32/1309_2.png) [@brendan](https://unicyclist.com/u/brendan)
#### Post date: [November 5, 2010, 3:06pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/9 "2010-11-05T15:06:49Z")

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that looks nice and ugly, hope it holds!

Bet it weighs quite a bit more than before too…

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### Author: ![jaco\_flans](https://unicyclist.com/user_avatar/unicyclist.com/jaco_flans/32/103351_2.png) [@jaco\_flans](https://unicyclist.com/u/jaco_flans)
#### Post date: [November 5, 2010, 4:42pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/10 "2010-11-05T16:42:05Z")

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Yeah, I just asked him to weld it, I said “Do whatever you want, but weld the flanges”, He decided to weld a straight line in the middle for nothing. The welds are huge, and ugly but they should hold up for a while. I have a spare wheel anyway now:p

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### Author: ![jaco\_flans](https://unicyclist.com/user_avatar/unicyclist.com/jaco_flans/32/103351_2.png) [@jaco\_flans](https://unicyclist.com/u/jaco_flans)
#### Post date: [November 7, 2010, 12:13pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/11 "2010-11-07T12:13:30Z")

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Here it is now! I took a better picture today:)

 ![](https://unicyclist.com/uploads/default/original/3X/2/f/2f0984456f8dd47c5beb0a68b72c3d6cf62ef2aa.jpeg)

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### Author: ![maestro8](https://unicyclist.com/user_avatar/unicyclist.com/maestro8/32/497_2.png) [@maestro8](https://unicyclist.com/u/maestro8)
#### Post date: [November 10, 2010, 2:53pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/12 "2010-11-10T14:53:06Z")

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> [@jaco\_flans](#):
>
> Well, my friend knows how to weld

“Pretty welds” aren’t just for aesthetics. They’re the result of a confluence of proper preparation, proper settings (i.e. voltage and feed rate), and welding techniques.

A uniform bead also ensures the metal does not oxidize in places that could compromise the strength of the weld.

If that picture is evidence that your friend knows how to weld, then that picture is also evidence that I am the world’s top brain surgeon.

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### Author: ![jaco\_flans](https://unicyclist.com/user_avatar/unicyclist.com/jaco_flans/32/103351_2.png) [@jaco\_flans](https://unicyclist.com/u/jaco_flans)
#### Post date: [November 10, 2010, 3:54pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/13 "2010-11-10T15:54:00Z")

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> [@maestro8](#):
>
> “Pretty welds” aren’t just for aesthetics. They’re the result of a confluence of proper preparation, proper settings (i.e. voltage and feed rate), and welding techniques.
> 
> A uniform bead also ensures the metal does not oxidize in places that could compromise the strength of the weld.
> 
> If that picture is evidence that your friend knows how to weld, then that picture is also evidence that I am the world’s top brain surgeon.

ok… He might not know how to weld, but he can weld stuff together. That’s what I mean when I say he only knows how to weld.

The hub is holding strong now, I haven’t got anything new with it except a little bit of rust, I guess 3 coats of clear coat wasn’t enough. I’m gonna be riding it hard so I want good results from it:)

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### Author: ![skrobo](https://unicyclist.com/user_avatar/unicyclist.com/skrobo/32/1086_2.png) [@skrobo](https://unicyclist.com/u/skrobo)
#### Post date: [November 10, 2010, 5:04pm UTC](https://unicyclist.com/t/repairing-kh-flanges/112629/14 "2010-11-10T17:04:06Z")

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those look like very porous welds.
