I've got a high-pitched squeek coming from my rear freewheel. It's intermittant, and seems to come only when I'm in one particular gear. Then it goes away for a bit until I forget about it.
I can not replicate this on the stand! I have tried everything I can think of to replicate the problem with no success. If I can't replicate it, I can't localize it, and if I can't localize it, I can't fix it!
I suppose it could be coming from the deraileur, but see paragraph #2.
I have tried regreasing everything, but it keeps coming back. I am loath to tear down the drivetrain (and rear wheel) without knowing what I'm looking for. Any ideas would be greatly appreciated.
On the other hand, I keep telling myself that it's now October, and so I'll be packing the thing up for a major annual pretty soon, so I just shouldn't worry about it until next year. But still it's making me crazy! And embarassed!