Richard Cielec wrote:
> I was recently told that Campag rear track axle is same thread as
> Campag rear der. hanger thread. So, the Campag axle w/key-way can
> be used to clean-up the der hanger threads.
Yep, and not just Track axles -- Road also.
Can also be used, with a cone or axle nut snugged up against the hanger on each side (front and back), as a lever to bend the hanger back into alignment -- if you have a bent hanger but don't have the proper alignment tool. If you do this, don't skip the nuts snugged up against the faces; they transfer the bending stress from being just on the threads, to being mostly on the faces, which can handle it better. It usually takes at least a little cheater bar to get enough leverage, which can flatten the threads on the other end of the axle a bit, so don't use a valuable antique axle.