I checked ebay and there aren't any 6770 rear derailleurs for sale right now. Are ones that are working a rarity?
Yes. Hen's teeth with a side order of rocking horse shit doesn't come close. You can use the levers with more modern kit, and the cables, but the FD is a paperweight.
Yes. Hen's teeth with a side order of rocking horse shit doesn't come close. You can use the levers with more modern kit, and the cables, but the FD is a paperweight.