TT - the wheel listing title was "MAVIC CROSSLAND RIM/DISC CL FRNT SIL NLM" and the description includes the sentence "It is compatible with rim brakes and disc brakes." I assumed the "CL" part of the listing meant "CenterLock", as other listings for the Crossland indicate that it comes in either CenterLock or 6-bolt versions. I was hoping that someone here might be able to tell me if that black plastic thing in my second photo is really just a dust shield hiding the CenterLock spline ring...