Originally Posted by
CliffordK
I'm not sure of the details, but I believe that MTB front derailleurs may be incompatible with road front derailleurs.
I'd limit your search to Sora, Tiagra, 105, Ultegra, etc. Also look at cyclocross components.
Clifford is quite correct. Shimano brifters are
only compatible with Shimano road FD’s, as he notes. Those have a particularly short arm between the pivot and the cable clamp. And you’ll need to find a triple version that does NOT have a deep inner cage plate.
These are several of the reasons I greatly prefer Ergo brifters, which can be used with any FD.
Edit: looks like you figured it out!