#1
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Unusual Noise Abatement
I rode my Rambouillet today for the first time since early in the season when it was my regular ride as it is my only road bike with fenders; we had some early afternoon showers today and the roads were still damp. Before the ride, I pumped up the Gatorskin 28s which are mounted on 32-spoke Open Pros. The rear wheel has a short Presta stem that allowed some air to escape during inflation, causing the pressure needle of the pump to modulate. I was attempting to inflate to 90 psi, which was easily done on the longer stem front wheel.
When I hit the road there was an immediate "wich-wich-wich-wich" sound that appeared to come from the rear. In the spring, my Rambo was totally quite while riding. After riding about 12 miles, I decided to stop and let some air out of the rear tire. This resulted in a noticeable reduction in the noise. After a hundred yards or so, I stopped again and let out more air; poof, the noise was totally gone.
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"I ride, therefore I think." Last edited by Spinner; 08-17-2020 at 05:23 PM. |
#2
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I think these are Mavic rims that you hear. They have a sleeve that could come loose and rattle. Usually stops at lower pressures. I have the annoyance on my Open Pro, but cannot hear it when I am riding, only off the bike.
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#3
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What he said.
It could be a loose spoke, or an axle dustcap which is not firmly seated. Sometimes that means a slightly bent axle. But most likely it's the dreaded Open Pro weld biscuit, so first I'd do a search for keywords 'Open Pro click' and read up from there.
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'Everybody's got to believe in something. I believe I'll have another beer.' -- W. C. Fields |
#4
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Quote:
Upon reflection, I suspect that the higher air pressure distorted the wheel ever so slightly causing some of the spokes to rub against each other, thus the "wich-wich-wich-wich" sound. I rode the Rambo again yesterday without the sound once again. Thanks to everyone for their input. BTW, i have three sets of Open Pros in my current fleet and this is the only one that has made any noise.
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"I ride, therefore I think." Last edited by Spinner; 08-19-2020 at 01:19 PM. |
#5
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Interesting. I flatted the other day and threw on an old set of Open Pro's to commute to work this morning and I hear the same thing going on. What timing. I have never heard of this before.
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