I’m selling a Stages Gen 3 Dura Ace R9100 power meter (172.5mm) in great condition. It’s the newest hardware version with the newest firmware installed. It works with any 172.5mm Shimano Hollowtech II Road crankset. I’ve got it mounted to an Ultegra R8000 52-36 crankset. I would sell the power meter alone for $400. Power meter plus crankset for $500.