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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When rims are drilled the shavings fall into the rim. Rim factories shake these out but sometimes miss one or two, or a shaving may still be attached, and break off after the wheel is ridden, and rattle around. The giveaway for a loose shaving is that you can hear it rattle when you shake the wheel or ride at very low speed, but faster speed forces it out against the periphery where it stays silent until you slow down again.
If you're patient, you can sometimes shake it out of single eyelet rims, but double eyelets make it almost impossible.
If it bothers you, and you can't shake it out, locate it by shaking, drill a tiny hole on the tire side of the rim and inject a drop of a glue like rim cement,. or stiff grease That'll keep it in place, and cure the rattle. Otherwise, either learn to live with it or ride faster.
An ounce of diagnosis is worth a pound of cure.
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