Rim Weld Separation (or its beginnings)?

Discuss light weight issues concerning road bikes & parts.
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mdeth1313
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Joined: Sat Apr 22, 2006 12:38 am
Location: Dutchess County, NY

by mdeth1313

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 2a.jpg
Speedplay is the devil!

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theremery
Posts: 2673
Joined: Sun Jun 12, 2005 10:56 am
Location: New Zealand

by theremery

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 ;)
Updated: Racing again! Thought this was unlikely! Eventually, I may even have a decent race!
Edit: 2015: darn near won the best South Island series (got second in age
-group)..woo hoo Racy Theremery is back!!

by Weenie


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theremery
Posts: 2673
Joined: Sun Jun 12, 2005 10:56 am
Location: New Zealand

by theremery

I'm assuming that is a pinned rim....not seamless welding and machined brake surface.
Updated: Racing again! Thought this was unlikely! Eventually, I may even have a decent race!
Edit: 2015: darn near won the best South Island series (got second in age
-group)..woo hoo Racy Theremery is back!!

mdeth1313
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Posts: 2071
Joined: Sat Apr 22, 2006 12:38 am
Location: Dutchess County, NY

by mdeth1313

It's a rim from a c-4 wheel-- it looks to me like a kinlin 200 rim.
Speedplay is the devil!

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theremery
Posts: 2673
Joined: Sun Jun 12, 2005 10:56 am
Location: New Zealand

by theremery

Yep...I have a set of those (C4 hubs but mine are on 270's)....yours looks like mine. Normal :)
Updated: Racing again! Thought this was unlikely! Eventually, I may even have a decent race!
Edit: 2015: darn near won the best South Island series (got second in age
-group)..woo hoo Racy Theremery is back!!

eric
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Location: Santa Cruz, California, USA
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by eric

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.

nhluhr
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Joined: Thu Jan 10, 2013 3:43 pm
Location: Seattle

by nhluhr

Isn't the Kinlin XR-200 rim pinned and not welded? if so, that seam would be a totally normal appearance.

by Weenie


seve88
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Joined: Tue Mar 18, 2008 7:06 pm

by seve88

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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