Originally Posted by
FBinNY
1- is the stack height enough so the top of the steerer is recessed below the stem or top spacer or by 2-5mm? If not you need another spacer?
2- is there a centering cone for the top bearing, and does the lowest spacer, or the stem press on it without touching the surrounding top HS part?
#1 is often a cause of headset adjustment problems
#2 Maybe or maybe not. The OP's bike has a CK headset. Older versions did not have a centering cone but relied on an O-ring in the top bearing cap to keep it centered. Newer CK headsets do have a centering cone.