[Serum]

I guess yours is newer, but the part in my motor being black was most likely because they had them stocked in black when assembling the rotor. perhaps the even earlier editions had both ends black.

I wouldn't be surprised if they decided not to anodize the black parts on the end of the rotor anymore in order to get the costs down.

'serums pictures where not high quality'.. Crap, at least it didn't took me two years before ripping it apart.. (oo,)