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PostPosted: Wed Jan 09, 2013 11:01 pm 
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Joined: Sat Apr 22, 2006 12:38 am
Posts: 1706
Location: Dutchess County, NY
Looking at this rim (see pics), it looks to me as if it's starting to separate. You can feel the two sections when running your finger over it on the one rather easily and feel almost nothing on the other side.

I'm interested in what others might diagnose--


Attachments:
rim weld 1a.jpg
rim weld 1a.jpg [ 107.97 KiB | Viewed 484 times ]
rim weld 2a.jpg
rim weld 2a.jpg [ 106 KiB | Viewed 484 times ]

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PostPosted: Wed Jan 09, 2013 11:11 pm 
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Joined: Sun Jun 12, 2005 10:56 am
Posts: 3178
Location: New Zealand
Relax....It won't separate....when spoked up and tensioned, there is some ridiculously high force holding it TOGETHER....it won't suddenly "open a gaping hole". Promise ;)

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Used to race....got too wrinkly and old ;) Updated: Racing again! Thought this was unlikely! Eventually, I may even have a decent race!


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Posted: Wed Jan 09, 2013 11:11 pm 


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PostPosted: Wed Jan 09, 2013 11:13 pm 
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Location: New Zealand
I'm assuming that is a pinned rim....not seamless welding and machined brake surface.

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Used to race....got too wrinkly and old ;) Updated: Racing again! Thought this was unlikely! Eventually, I may even have a decent race!


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PostPosted: Wed Jan 09, 2013 11:27 pm 
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Joined: Sat Apr 22, 2006 12:38 am
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Location: Dutchess County, NY
It's a rim from a c-4 wheel-- it looks to me like a kinlin 200 rim.

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PostPosted: Thu Jan 10, 2013 10:37 am 
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Joined: Sun Jun 12, 2005 10:56 am
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Location: New Zealand
Yep...I have a set of those (C4 hubs but mine are on 270's)....yours looks like mine. Normal :)

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Used to race....got too wrinkly and old ;) Updated: Racing again! Thought this was unlikely! Eventually, I may even have a decent race!


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PostPosted: Thu Jan 10, 2013 3:39 pm 
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Joined: Tue Nov 11, 2003 9:47 pm
Posts: 1646
Location: Santa Cruz, California, USA
I was going to ask if that was a Kinlin.

It looks typical to me. If the seam is noticeable during braking you can use a flat stone or fine sandpaper (wrapped over something flat) to knock it down.


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PostPosted: Thu Jan 10, 2013 6:43 pm 
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Joined: Thu Jan 10, 2013 3:43 pm
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Location: Seattle
Isn't the Kinlin XR-200 rim pinned and not welded? if so, that seam would be a totally normal appearance.


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Posted: Thu Jan 10, 2013 6:43 pm 


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PostPosted: Thu Jan 10, 2013 7:01 pm 
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Joined: Tue Mar 18, 2008 7:06 pm
Posts: 48
Quite normal to see (and feel) that joint. Like already stated, once built you could cut throught the rim and the compression would keep it together.


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