Originally Posted by TiHabanero

Good friend of mine had that creaking noise and could not figure it out. On a tour one day he hit a bump and the steerer tube broke off at one of the threads just below the headset. He broke his collar bone. Looking at it later we realized that was the source of the creaking due to the corrosion on half the cracked off thread. Pull it apart and inspect to be sure all is A-OK.