Non-welded rim seams

David Feldman

2003-04-23



Occasionally, when building a wheel with a non-welded

rim, there will be a snap followed by a ringing sound

as a pinned joint is pulled shut by spoke tension.

This does not happen often but it is a reminder of how

spoke tension holds a wheel together!

David Feldman

--- mike.m-@obra.org wrote:

 Rim joints are held together by the tension in the

spokes. Welding the

joint is superfluous and actually has the potential

to weaken the rim near

the weld. There is no problem whatsoever with using

a non welded rim joint.



Mike Murray



-----Original Message-----

From: stillfire [mailto:still-@hotmail.com]

Sent: Tuesday, April 22, 2003 12:22 PM

To: OBRA Chat

Subject: [OBRA Chat] Non-welded rim seams





OBRA folks,



Does anyone know how non-welded rims such as the

Mavic MA3 are joined? Has

anyone ever had any problems with such a rim

seperating at the seam under

heavy breaking or long term use? Just curious.



Matthew Wall



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Don Person

2003-04-22



The rims are usually pinned with a small piece of metal inside the hollow

part. They may also be glued but it is not needed. There is little to no

durability issue. The braking can be a little rough if the seam is not

perfectly aligned but it gets better with use as it wears.



I perfer pinned rims. Welded rims can cost more with few benefits. UST mtb

rims may need to be welded to be air tight.



 OBRA folks,



Does anyone know how non-welded rims such as the Mavic MA3 are joined? Has

anyone ever had any problems with such a rim seperating at the seam under

heavy breaking or long term use? Just curious.



Matthew Wall



Don Person - Race Director

Cascade Cream Puff 100 mile Mt. Bike Race

http://www.puff100.com

cc-@puff100.com



mike.m-@obra.org

2003-04-22



Rim joints are held together by the tension in the spokes. Welding the

joint is superfluous and actually has the potential to weaken the rim near

the weld. There is no problem whatsoever with using a non welded rim joint.



Mike Murray



-----Original Message-----

From: stillfire [mailto:still-@hotmail.com]

Sent: Tuesday, April 22, 2003 12:22 PM

To: OBRA Chat

Subject: [OBRA Chat] Non-welded rim seams





OBRA folks,



Does anyone know how non-welded rims such as the Mavic MA3 are joined? Has

anyone ever had any problems with such a rim seperating at the seam under

heavy breaking or long term use? Just curious.



Matthew Wall



To respond to the whole group send to ob-@topica.com.

To respond to the list manager send to ob-@teleport.com

To unsubscribe send to obra-uns-@topica.com



stillfire

2003-04-22



OBRA folks,



Does anyone know how non-welded rims such as the Mavic MA3 are joined? Has

anyone ever had any problems with such a rim seperating at the seam under

heavy breaking or long term use? Just curious.



Matthew Wall