I'm looking to buy an Ultegra 12-speed crankset. And I'm seeing them sometimes listed as "grey". Yet as far as I know there are no color choices. Shimano lists the color as "series color" (?). The basic model number is "FC-R8100" of course the crank length must be specified.

Anyone have an info on whether there is in fact color differences? What I want is just a plain old black crankset.