The new fork, including the “nose cone” steerer tube, is now only one piece. Cervélo also ditched the stack peak-specific stem bolts used on the past S5. You can find now only one set of bolts that go over the entire 30mm of stack adjustment, as well as the S5 https://cerveloebike89704.alltdesign.com/not-known-factual-statements-about-bicycle-seats-46692499