Originally Posted by
Grand Bois
Why is there a short, loose wooden plug in my PX10's steerer? I don't buy the story that it was put there to keep the fork from separating if the steerer breaks. It's too short and too loose to do that. The idea that it's there to keep water out of the steerer doesn't make sense to me either, since it would trap water that enters from the top.
I believe I've seen this discussed before, and one of the logical theories advanced is the wooden plug is there to strengthen the steerer at the location of highest stress.