What's with this pin/extra lug looking thing on the front brake rotors? Does everyone have this? It's a brass/gold looking thing that protrudes out of the front brake rotors. It's preventing me from getting my new wheels on!

 

just unscrew it and put your new wheels on. its there to prevent switching front and rear stock wheels. its there, i think, to dummy-proof techs when they have the wheels off.

 

Got it, thanks.