Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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Loose flotsam within rims is common, and it's easy to verify if this is the cause because you won't hear it at higher speeds where it doesn't move. Slowly rotate the wheel and listen for it shifting. If you can hear it, then spin the wheel fast and see if it stops.
If it is within the rim, you can disregard it, try to shake it to the valve hole and out, or if it really bothers you, drill a small hole on the inside of the rim and inject a bit of glue to trap it.
The other place that makes this kind of sound is in the hub, often indicting a broken axle held together by the QR skewer.
If you ride tubulars, sometimes a badly glued zone will make noise on the road but not in a stand, which is very frustrating and makes you look like an idiot when you report the problem and the mechanic can't find it.
An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions”
- Adm Grace Murray Hopper - USN
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