So - these fit perfect on my 1976 550F in stock configuration.
I replaced for performance more than looks- my originals were still nice enough, but too soft after 40 years

Here is how they came out of the box:

One big difference, for me at least they do not perfectly match, in that the length of the chrome draperie thing is shorter.. as here:

And disassembled here:

As far as the installation went- It is dead easy.
Up on the centerstand
Remove top and bottom bolts, as well as grab-bar retainer.
They are not loaded, and then just come right off.
A little WD40 to get the rubber grommet of the new one to slip on...
Rebolt and presto.
Installed:

On test ride they feel great.. they are adjustable with the stock tool, and look opriginal to the casual eye.
I will update after a longer bit of riding
