Originally Posted by
Bianchi84
It doesn't clamp on the stem; it and the very thin nut that accompanies it replaces the old headset top-nut and binds on with that pinch-bolt rather than screwing on like a headset bolt would.
I think I must be missing something- theres the ferrule, the collar, and the lock ring nut thing... is there anything else?
The the lock ring nut pictured above doesn't fit inside the collar- and it can't pinch down on the nut underneath it- unless there's something else that goes inside the collar... right?