Originally Posted by
velonomad
Your old trek has a 1" threaded headset, there aren't many choices to worry about. However with the Velo Orange headset it has a stack height of about 42 mm. IIRC the old Trek 970 was speced full Campy. If so the original headset was probably around 37-38mm stack height. The top nut on the Velo Orange isn't that thick so you could conceivably have an issue with having enough threads for the top nut.
Installation tip; put the bearing cups in the freezer for about 30 minutes before you install them, they will go in much easier.
Great stuff velonomad. I haven't begun to even look around at other options yet so I'll do some research on the Campy spec and see what I can come up with. And, yeah I'll remember to shrink freeze those cups before pressing them in.
