The Speedplay X cleat sets, V.2 (sponsorship-only black) are IDENTICAL dimensionally to the standard gold version that was offered to the public.  The ONLY difference is that the sponsorship-only black bottom plates use HARD BLACK ANODIZATION.  (For reference, the standard X cleats use HARD GOLD ANODIZATION.)  BOTH the black and gold anodization use TYPE III HARD ANODIZATION which provides the most abrasion resistance out of all three types, so there will be NO DIFFERENCE in the wear characteristics between the two versions.  The X spring housings and base plates of the sponsorship X cleats use the same GV6H grivory material as the standard X cleats.  The V.2 Base Plates in the sponsorship X cleat sets use the same V.2 Base Plates with GV6H grivory as those in the standard X cleat sets.  (NOTE: The "6" in GV6H refers to the 60% glass content in the grivory.)