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Question for Mavic CXP21 rims owners(3 posts)

Question for Mavic CXP21 rims ownersc722061
Mar 20, 2003 8:57 AM
I just received a brand new rim but there is a tiny gap where the rim's edges join. The seller kept insisting that there is nothing wrong with it, my LBS said that it's no good. Does anyone have the same gapping problem on this rim? Your opinion is appreciated.
It's probably OK.Spoke Wrench
Mar 20, 2003 9:08 AM
Lower priced rims are made by coiling an aluminum extrusion, cutting the coil to form hoops, and pinning the joint with metal dowels. In your case, it sounds like the joint hasn't been pushed together quite as well as you would like.

A more common problem is rims that don't line up quite perfectly from side to side. When this happens, the brakes make an annoying "thump" with every revolution. That's a warranty issue.

If you're in doubt, install a rim strip, tire and tube. There's no reason to build the wheel up first. Pump up the tire and see what happens.
I've seen that before.niteschaos
Mar 21, 2003 9:13 AM
I was rebuilding a friend's wheel and I noticed when I detensioned the rim that there was a gap. But when I rebuilt the wheel and started bringing it back up to tension the gap dissappeared completely.