I have a new, take off Ultegra r8000 crankset. It's a 50-34, 172.5. I changed to go with a different crank length. Never used. $180 shipped.
Pics here: https://www.dropbox.com/...xuJNyVjOE4gDLta?dl=0
Pics here: https://www.dropbox.com/...xuJNyVjOE4gDLta?dl=0