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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 12-28-04, 12:05 AM   #1
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rear der won't shutup!!!!

rear der was chirping away after a new install. Brand new Record der, too. The pulleys are the sleeve/bushing type. I even took apart and tried some chain lube, still noisy. Took apart again, tried some good synthetic bearing grease, still chirping away when I pedal. There is not abnormal play or movement, they seem perfectly fine. And yes, it is the der pulleys. So, I said to heck with it and ran it on the trainer. I did notice, it seemed to get a little quieter after just running it on my trainer for a half hour. Maybe I should just run it, and see. Has anyone had this happen?

Any ideas on how to stop this?
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Old 12-28-04, 12:41 AM   #2
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Could be the old chain on new pulley wheels - the teeth are similar to those on cogs & chainwheels, and as you know it's not a good practice to mix old & new stuff. As you mentioned, there seems to be less noise as you use the derailleur, so maybe the chain & pulley wheels are getting better acquainted... Good luck.
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Old 12-28-04, 01:17 AM   #3
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Actually, it is a brand new wipperman. But, I found the dry lube they package it with is very insufficient, and was chirping in not just one, but several places as it made the sharp turns as it passed through the pulleys. So, I drenched it with Tri-Flow, and it is now as quiet as a mouse.

At first I was sure it was the pulley bushings, because it seemed almost constant, as you would here from a bad bushing, but that was not the case. Anyway, I figured it out after sitting on it for a while.

Thanks anyway, you were just about spot on with your idea. I think the chain was trying to slowly work itself in by ruunning it on the trainer, but just wasn't quite lubed good enough.
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Old 12-28-04, 01:45 PM   #4
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yep.....good old tri-flow fixed that same problem on my new drive-train. Still chirps a bit when it needs fresh tri-flow.


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Old 12-28-04, 01:58 PM   #5
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I asked the same Q here, a few weeks ago, about my chirping jockey wheels on a classic Campy SR.

The good people here recommended Tri Flow. It worked.

My RD is ghostly quiet now.

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Old 12-28-04, 02:19 PM   #6
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That slime they package chains with is a preservative more than a lubricant, and should always be cleaned off and replaced with the real thing when you install the chain.
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Old 12-28-04, 04:05 PM   #7
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I hate tri flow. It lubes well, and lasts a long time, but so much gunk accumulates on it, and it is such a pain to clean up. I recommend pro-link.
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Old 12-28-04, 05:53 PM   #8
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i like t9.
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