Originally Posted by
dabac
Or get a length of threaded rod. Make yourself two cross pieces out of an old broom handle or whatever. Put one cross piece at the end of the rod. With the wheel removed, insert rod through steerer from the bottom. Put spacers and stem in place. Put next cross piece on. tighten gently to create preload. Tighten down stem. Remove rod.
Pat yourself on the back for shaving maybe 30 grams worth of weight off the bike by not using an expander.
Cute variation on the home made headset press but most carbon forks have a closed crown at the bottom of the steerer tube so there is no opening to let the rod enter.