My wheelset has alloy nipples which have severely corroded. It needs rebuilt with brass nipples.
However, my LBS can't get the spokes out. The nipples are too disintegrated to turn, but not disintegrated enough to just crumble to dust and release the spokes.
The LBS says the only option is to cut and replace the spokes. This will be expensive (multiples of the cost of a simple rebuild using existing spokes).
My questions are:
- Any suggestions how to get the spokes out?
- Specifically, are there any chemical tricks to accelerate the corrosion and entirely dissolve what remains of the nipples (without damaging the rims or spokes).
The wheelset has carbon rims, steel spokes, high-end straight-pull hubs, and alloy nipples.