In yesterday's article, I wrote that you need to
remove the bearing adjustment nut temporarily
when installing a disc rotor on a Chris King R45D
rear hub. I received a comment saying that
with the latest R45D hub, the bearing adjustment nut
shape has changed, making it possible to attach
and remove the rotor without doing that.

So here's an image I borrowed from the manufacturer.
The bearing adjustment nut has changed from looking
like a mushroom head to a slim cylindrical shape.

Also, from another comment I learned that
the bolt for tightening the bearing adjustment nut
has switched from a hex socket to a Torx socket,
which is another way to tell the difference.
In the image above, you can clearly see it's a Torx socket.
Thank you for the comments!