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That funny pinging noise that issues from my front wheel.

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That funny pinging noise that issues from my front wheel.

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Old 01-21-08, 01:59 PM
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Rusty Piton
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That funny pinging noise that issues from my front wheel.

Hey all,
So i've been riding this old beater fixie conversion through the winter, and when i did the convo, I left the old front wheel on because it seemed fine at the time. But in the last few weeks every time I stand on the pedals to accelerate, this funny pinging noise issues from the front wheel. The noise seems to occur once per revolution of the wheel. Any ideas as to what's going on? I'd hate to be in traffic and have my wheel explode.---
---rudy
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Old 01-21-08, 02:02 PM
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Al1943
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I'd start with the spokes. Loose spokes often ping. And it's the loose ones that break.

Al
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Old 01-21-08, 10:11 PM
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bmalmquist
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I'd say it's a bit too general to just say loose spokes ping. It does however, sound like your spoke tension is awry. Bring all the spokes up to proper tension. If the pinging is still there, it may be the spoke-cross interface. Oftentimes, I've found that spreading the spokes at the area they cross one another and dabbing a bit of grease in there solves the problem. It could also be spoke head/hub flange interface or spoke thread/nipple interface. I've seen 'em all.
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Old 01-22-08, 10:47 AM
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TurdFerguson2
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Another to check for is the rim joint. A lot of rims use a pinned joint on the rim and often times the pin is held in by little dimples on the inside of the rim. If the pin gets loose, it can slide back and forth, and every revolution it will shift from one side to the other. If this is the case, you should be able to hear it at low speeds or even by lifting the wheel and spinning it.

If that is the case, I think there are other threads on here about the best way to deal with it, but I usually just drizzle a lit bit of locktite into the seam to keep the pin from moving.

This may not be your problem since you say it is most noticeable when standing, but it is worth checking so as to rule it out.
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Old 01-22-08, 11:21 AM
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czecher
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I know this may be too simple, but I had this same sound caused by the computer magnet hitting the sensor only while I was standing, once per revolution.
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Old 01-23-08, 01:20 PM
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Rusty Piton
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There's DEFINITLY no computer on this bike. I think that spoke tension is most likely the culprit. The wheel is about twenty years old and inspecting them just now, it feels like three of the spokes are a touch loose right at the nipple. Thanks guys.
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Old 01-23-08, 05:53 PM
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Before you do anything to the spokes on that thing, lube the hell out of them and let it sit overnight. Otherwise you may find yourself replacing seized spokes.
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