8-speed MICROSHIFT shifters and ultegra RD-R8000-SS derailleur I have Decathlon B'Twin Triban 500 with 8-speed MICROSHIFT shifters in the back. I am in the process of turning this commuting bike into my gravel bike. I already added new wheels and 35mm tires, Shimano chain and cassette.
Now, I have an extra Ultegra RD-R8000-SS 11 speed derailleur that I was thinking to use instead of the MICROSHIFT one. MICROSHIFT is ok but not that crisp. The question is, would it Ultegra derailleur work in this setting and what needs to be adjusted (e.g., limit screws)?
No, Microshift is usually compatible with Shimano (As far as I know, all except Advent 9 speed), but Shimano 8 speed is not compatible with Shimano 11 speed as the derailleurs have different pull ratios.