Originally Posted by
norskagent
the older campy pista headset has a shorter stack height, but they are hard to find and expensive.
The Campy "Sport" headset has identical stack as the Pista and seems every bit as nice. The only difference I've found is that the threaded cup has only 2 wrench flats on it vs 8 on the Pista. All the other parts appear identical -- beautiful ground and polished races, triple chrome plated, etc. They are often mistaken for Pista headsets, in fact, and are somewhat more common and less expensive. The outside of the cups, like those on the Pista, are completely unmarked. Only the locknut shows a visible Campagnolo name when the unit is installed.