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Open Pro click(4 posts)

Open Pro clickPsalm 147-10_11
May 19, 2003 7:34 AM
I know this has been discussed before, but I couldn't find it using the search, so I'm hoping to bring it up again for discussion.

My rear wheel is ticking. It is a Chorus hub laced to Open Pro rims. I've got about 13,000 miles on the rim and I weigh 190 pounds. When I swap wheels, the click goes away so I know it's the wheel and not the bike itself.

Yesterday I pulled the cassette and took off the tire and rim tape. When I shake the wheel side to side, I can hear a slight rattle. I'm wondering if this might be the source of the problem, although it's not nearly as loud as the click I hear when riding. Also, the rattle doesn't seem to be coming from one centralized spot on the rim.

If I recall correctly, Open Pro rims sometime develop a click when a tack used in the welding process breaks loose near the seam.

What is the best way to diagnose this problem and are there any solutions short of rebuilding the wheel.

Thanks for any input.

re: Open Pro clickMootsie
May 19, 2003 10:21 AM
I had the same problem with OP's. I took it to my LBS and with one well placed hammer tap the pin was creased back into place. There was no need to take apart the wheel.
re: Open Pro clicktarwheel
May 19, 2003 10:46 AM
I've got 2 sets of Open Pros and they both click, although it seems to come and go. I've gotten so used to it that I hardly notice any more, but lately my riding buddies keep asking what that clicking noise is coming from my bike! It's sort of hard to explain to someone who doesn't use OPs. One thing that sometimes helps is to put a small drop of light oil on each spoke nipple where it joins the rim. To really fix the click, I think you have to hammer the rim carefully in the right spot, but I don't trust myself to do it without damaging the rims. Ask you LBS if they can fix it.
Open Pro click - Problem Fixed!Psalm 147-10_11
May 20, 2003 7:25 AM
Thanks for your responses. I ended up calling Mavic directly as my LBS didn't have an answer. The solution is in fact very simple.

Apparantly, when the rim is welded together, two pins are tacked on either side of the joint to hold everything in place. These pins sometimes work themselves loose when the wheel is under pressure.

Here is how I fixed the problem. First, I removed the tire, tube and rim tape. Next, I found the weld seam which is located opposite the valve hole. On either side of the seam, there is a dimple where the pins were placed. It looks sort of like this:
Mavic instructed me to hit each dimple with a center punch (or 16 penny nail) so as to "recapture" the floating pins. I gave each dimple a good whack and now the clicking noise is completely gone.

Hope it works for you too.