Originally Posted by
HillRider
How far is the top of the steerer tube below the top of the stem? The steerer should be nearly, or better yet fully, supported inside the stem and a gap of only about 3 mm left for headset adjustment. Full support is really recommended if the steerer is carbon and if possible have the steerer extend slightly above the stem and use a small spacer to get the required gap.
BTW, I count 70 mm of spacers below the stem and, if that's correct, that's more than any carbon steerer is supposed to have. A maximum of 50 mm is the highest stack I've ever seen any maker allow and that's with a 1-1/8" steerer. If you really need that much you probably need a larger frame.
It is no more than 3 mil, enough for the cap to fit properly.