Originally Posted by TenGrainBread

Hmm, time for a new pump! My Park floor pump has no problem with either valve type.

The diameter of a drop handlebar where brake levers mount is 23.8mm. The diameter of flat bars is 22.2. Your cyclocross inline levers probably have a 23.8mm clamp for drop bars, too big for the 22.2 of flat bars.

As far as cable pull, there are two kinds:

-Short pull: works with cantis, sidepulls, centerpulls, u-brakes, roller-cams, and "road"-labeled disc brakes.

-Long pull (aka "linear pull" or "direct pull"): works with V-brakes and "mtb"-labeled disc brakes.

Modern Campagnolo integrated brake/shift levers are short pull but have a slightly different cable pull ratio. They will work with any short pull brake but they will work better with Campagnolo-specific brakes. For example, Paul Components short pull disc brake is offered in a regular-short pull or Campagnolo-short pull version.