While I REALLY wanted to try the liquid nitrogen route, I just couldn't make it happen.
So ... I simply removed most of the 'safety' guards, shields, and such from my bench grinder ... and went to town on it. I was able to expose the complete race to the wheel ... after about 5 minutes of grinding ... I heard a *loud* pop ... and I thought I had broke the cast aluminum triple ... but it turns out that the race was thin enough to fracture under the heat. Then it simply fell off the stem and onto the floor.
See the fracture? Cool, eh?
Next: The installation of a massive set of forks.