Originally Posted by
bikeman715
take the headset off the bike , stack the parts on a table in the same order, use capliers or a ruler and measure. if the new one is the same or smaller (shorter) then all is good. if not you need a longer steeing tube on the fork . or new fork.
This assumes the portion of each cup that is pressed into the headtube is the same height, right? I would have expected some variance between different headset models.