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Open Pro click noise revisited(12 posts)

Open Pro click noise revisitedNessism
Aug 18, 2003 8:58 AM
Just finished building a new set of wheels using 28 hole Dura Ace hubs with Open Pro rims. Used 15/16 spokes with brass nipples on all but the drive side rear which received 14/15's. Build up went great, no problems...until the first ride. The rear wheel makes a tinkle/click noise with every revolution! The noise can be heard even when rotating the wheel at low speed with no load. Noise can also be heard when grabbing wheel and shaking hard. Seems to me that there has to be something loose inside the rim extrusion.

Did a Google search and found lots of info regarding seam assembly pins/plates comming loose. Tried drilling out the seam pin dimple marks and adding glue to lock down the assembly pin to no avail. In fact, I couldn't find anything moving around in there at all near the weld joint. So at this point I think it must be some sort of metal burrs or similar floating around inside the rim.

Any ideas on what to try next?

Ed
re: Open Pro click noise revisitedChen2
Aug 18, 2003 9:04 AM
Loose spokes? It can happen to anyone, and it's the loose ones that break.
~Al
re: Open Pro click noise revisitedNEIL
Aug 18, 2003 9:57 AM
I rode Open Pros for 10 years without problem, then got a new wheelset with new Open Pro rims (DA hubs/CD/ceramic/SUP/14/15 double-butted/brass nips) and have this same problem as you describe it.

I have tried drowning the spokes in oil, I've tried adding a drop of Super Glue to each of the eyelets from both the outer and inside of the rim, and checking spoke tension, and adding glue to the the rim joint pin with no results that last beyond one ride. For a while, I thought it was the freehub, but all seems fine and am now convinced it's eminating from the rim itself.

I'm at loss too as to what to do. I don't ride those wheels as I can't stand the mind-numbing clicking. This seems to be a common problem, but I don't know of any "fix-all" solution. Anybody?
NEIL
how about...maurizio
Aug 18, 2003 10:19 AM
My first guess would point to uneven spoke tension.
But if it making the noise at no load (ie up in a work stand or truing stand), perhaps there is a shaving or an eyelet piece that is literally floating around inside of the rim.
Mavic has unbelievable quality control and their products are inspected by no less than an army of folks.
I doubt it is a 'faulty' rim, but merely circumstance whereby something is loose near an eyelet or sliding in that box sectioned area.
I had the same problem with an older (10,000 miles) set of OP's, and I noticed an eyelet that was cracked. Upon further riding of many months, that eyelet slowly....began to pull out of the rim and crack the area surrounding the eyelet.
Point here is that I had more than enough time to see this happening and do something about it. I am going to experiment a bit and see how long it can go before it completely fails - all in the name of science of course.
Extra nipple?LC
Aug 18, 2003 10:42 AM
I once had a similar sounding thing and it ended up being a extra nipple inside the rim. Take the rim tape off and shake the thing like hell and see what falls out.
Had the same problemPaulCL
Aug 18, 2003 11:03 AM
My OPs with record hubs. After about 5000 miles, the clicking started. Drove me nuts. There was nothing in the rim. Eventually, I started putting a drop of lube on the nipple inside and out of the rim. I also, fwiw, put a drop of lube where the spokes crossed and the spoke eyelet at the hub. Probably overkill, but it worked. This always takes care of the click for a few hundred miles. I use my OP's as second wheels now...so my first ride with them is always click-filled.
I've gotten used to ittarwheel
Aug 18, 2003 11:10 AM
I've got Open Pros on both my road bikes, and they both have the dreaded click. Oiling the eyelets seems to help, but periodically they just start clicking. I've learned to ignore the noice and actually forget about it until one of my riding buddies asks me what that clicking noise is on my bike. Then, it's like a song you can't get out of your head ...
Try thismcteague
Aug 18, 2003 11:30 AM
The most common reason for this is a loose "heat sink" which is a pin/plate that holds the rim together when it is welded. Sometimes, due to high tire pressure, impact, or just bad luck it can come loose. Take off the tire and rimstrip, find the seam where the rim was joined and you will see an indentation on either side of it. Use a hammer and nail punch and make the indentations a little deeper. This will, hopefully, press on the pin and stop the noise. Don't wack too hard, just enough to hold the pin still. Bon chance.

Tim McTeague
To reiterate...Nessism
Aug 18, 2003 12:52 PM
I drilled holes through the indentations using a 1/8" drill bit and dripped epoxy glue in the holes. Then I made sure the glue ran around in the cavity to glue down any loose bits that might be in there. Unfortunately, this made no difference at all. I think there may be something loose inside the rim, but it's not in the cavity at the weld joint.

Also, I don't think this particular click/tic noise is spoke tension related since it occurs even when holding the wheel with my hands and spinning.

Ed
It's definitly a common problemxcmntgeek
Aug 18, 2003 2:56 PM
A lot of guys I know have the same problem (including me). For some, putting pressure on the welding prep strip fixes it but it didn't work for me. Eventually I was able to fix them, I got a different set of rims. Good Luck!
Shake it looseKerry Irons
Aug 18, 2003 5:16 PM
You've got a piece of metal shaving in there. By judiciously shaking things, you might/should be able to work the loose piece toward the valve hole and finally out. Otherwise you're stuck with the noise unless you want to go through the trouble of getting a warranty replacement.
Similar problem on Mavic CosmosSpyky
Aug 19, 2003 7:11 AM
I have a set of Mavic Cosmos that has a similar problem with the front wheel. It sounds almost exactly like a loose spoke. But none are loose. (also checked computer magnet) It happens even on the stand when lightly tapping the rim or the tire. I tried pinpointing the area of the rim which the sound eminates from by spinning and tapping different areas (and holding my ear near the rim), but it seems to come from several places. Interestingly, I tried deflating the tire, and tapping the bare rim, and the noise was gone. Could it somehow be related to the tube/tire interface? I have it inflated to about 110-120psi.

After reinflating the noise seems to be reduced, but still appears on particuarly rough roads (it used to be all the time)

-Spyky