So I'm trying to find out if Shimano Metrea ST-U5060-R would be compatible with any Shimano 11 rear derailleur?
Also, would it also be compatible with the T4700 Tiagra derailleur since it seems to be using a 11 gear pull ratio (even though it's a 10 speed derailleur).
Or do you really need to stick with the Shimano Metrea derailleur in order to use that shifter?
Same question with the front derailleur.