I recently purchased a used road bike with Campagnolo Moskva 80 rims, and one of the spokes on the front wheel is loose. I am not able to tighten it-the spoke just turns with the nipple and then turns back to the original position. Does that mean the nipple is frozen to the spoke, or that it's out of adjustment? What can I do to fix it?
I've done some minimal wheel truing, but I don't have much experience with spokes.
Apply some light oil or Liquid Wrench to the threads. Hold the spoke so that it is not able to turn as you tighten the nipple. There are special pliars for holding spokes but I just use normal plaiars on stainless spokes.