Originally Posted by Pocko

I had an MTB wheel that did that (make spoke noises occasionally). It had black spokes and where two spokes would cross-up and rub, the black powder-coat on the spokes had worn out. I could replicate the sound by gripping the two spokes that crossed against each other... and the sound would occur when the point of contact between the two spokes would change and then slink back to it's original spot. I'm guessing this happened because my wheel got exposed to a lot of grit and mud, etc... that, and the spoke tension was on the low side.

I got rid of the sound by placing a drop of chain-lube on every cross-point and tightening all the spokes the same amount (not by much, about half a turn).

May or may not be the case in your situation, but nothing lost in checking...

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