The new fork, such as the “nose cone” steerer tube, is now only one piece. Cervélo also ditched the stack height-specific stem bolts used about the former S5. There is now only one list of bolts that deal with the entire 30mm of stack adjustment, along with the S5 ships https://bikecervelo06283.livebloggs.com/32843609/how-bicycle-repair-can-save-you-time-stress-and-money