Originally Posted by
rmac
Except for Cannondale which uses a regular starnut on their carbon forks.
What do you do when the expander plug keeps slipping up the steerer before the right torque is reached?
I believe the Cannondale starnut is a specific propretary item and not the ordinary ones you use with steel or Al steerers. Also, Easton now machines threads into the interior of their carbon steerers and provides a special threaded insert that does the job of the expander/starnut.
All of the expanders I've used have two threaded parts, one to tighten the plug into the steerer and the second to hold the top cap/stem compressor bolt. The FSA's use a 6 mm hex wrench to tighten the expanedr and a 5 mm hex to torque the top cap.