I'm having the same trouble, although it's a glued bung which isn't holding in the long-term.
All the same, like you, I'm surprised the stem isn't holding: carbon steerer/assembly paste/torque wrench.
Forgot about the old carbon assembly paste though....
.....do I risk taking it apart again to paste it up!!?!
@Dick started
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I'm having the same trouble, although it's a glued bung which isn't holding in the long-term.
All the same, like you, I'm surprised the stem isn't holding: carbon steerer/assembly paste/torque wrench.