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Front wheel - Strange noise help

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Front wheel - Strange noise help

Old 07-18-09, 11:22 PM
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damnable
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Front wheel - Strange noise help

Hi everyone,
I've recently bought myself a second hand road bike. It's a steel LeMond Alp d'Huez, not sure what year. Wheels are Mavic Open Pros with Shimano 600 hubs. I'm really rather fond of it.

However, it's been making some noises which I am not sure I should be worried about on the road. The noise is a serious of ~4 clicks one after each other. The frequency the appear depends on how fast I am going (the faster I go, the faster the clicks sound). You can also here it regardless of whether you are pedalling or coasting. You don't hear the sound when on the trainer or when you hand spin the wheel (while there is not weight on it).

So, it seems it might be something on or around the front wheel. There isn't anything obvious I can see. Is there anything I should be especially looking for to see the problem or ideas on what it might be?

Thanks
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Old 07-18-09, 11:31 PM
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wreichert
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Have you checked the brakes? There could be something on the pad or perhaps in the groove of your pad.
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Old 07-18-09, 11:43 PM
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tracking down the source of a sound is often difficult. the sound seems to come from one area, but often it's emanating from another area or only when the bicycle is actually being ridden (so finding where the sound is coming from is obviously tricky). whenever I have a unusual sound that I cannot solve, I just break down the entire bike over a few hours and degrease/clean/regrease/tigten/rebuild as well as check for any problems. It's a scorched-earth policy that works for me.

I once had a serious injury from a mechanical failing that I ignored for a few weeks until I ended up in the ER, so I dont take weird sounds lightly. Plus, I enjoy the process -- a very meditative alone-time.

Besides that, have you gone through this page: http://www.sheldonbrown.com/creaks.html ?

Last edited by psirue; 07-18-09 at 11:47 PM.
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Old 07-18-09, 11:55 PM
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In the hints and tricks thread, someone recommended using a cardboard tube from a paper towel roll and holding it to your ear to try and isolate the source of the sound. I'm sure you could use a funnel, as well, or even just cup your hands around your ear. Have a friend pedal the bike on the trainer while you try and locate the sound.

It's important you definitely locate the point source of the noise, as well as try and qualify it, which you've already begun to do. But try to get cleverer about just identifying the source first.
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Old 07-19-09, 12:53 AM
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Originally Posted by psirue View Post
Plus, I enjoy the process -- a very meditative alone-time.
Very nice I enjoy it as well.
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Old 07-19-09, 05:44 AM
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I have found the same noise on open pro's before. It may be one or several of the internal ferrules has come loose frome the outer ferrule. Remove the rim strip and see if any of them are loose. I've had them just fall out before! If this is the case, you need to lace on a new rim. these rims sometimes will stay true with broken ferrules, but i wouldn't trust them.
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Old 07-19-09, 07:19 AM
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Open Pros had (still have?) a reputation for clicking noises due to metal fragments left inside some of the rims from the manufacturing process. Remove the tire, tube and rim strip and see if you can locate any shrapnel inside the rim. Often it's trapped between adjacent spoke ferrules inside the rim and can be silenced only with an injection of super glue.
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