Once you know it is all so obvious but before you know it is confounding.
Okay my '08 250xcfw forks look just like in Haynes and on YouTube. I can work on them
But...
My 2007 525 xcw has a new to me fork cap

. It is perfectly round (no 48mm or 50mm) with a 24mm hex in the center that has a "Setting Knob + Screw" in the center of it. No holes for a peg spanner.
I've looked at the fiche and think I know but why break something if I can ask a bunch of FF's who are more experience in these matters than I?
Question: Loosen the cap with the 24mm hex on the cap?

s this qualify me for Dumb Question O' The Week ?