What is this thing?
On my mountain bike there is a circle on top of the headset. It screws down, mine says Scott but I want a purple one. Can I replace just this piece or it it part of the headset? I keep bruising myself on it from dismounting improperly, I want a bruise colored one to go with my purple lock on grips I am ordering. lol. 
I can take a picture tonight if that was as clear as mud.
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan