Can we use Shimano XTR 2x11 speed shifter with Shimano 2x11 Dura-Ace RD and FD? Is Shimano XTR 2x11 shifter compatible with 2x11 Dura-ace RD and FD? I'm looking to upgrade my old bike with porteur type handlebar with some high-end components. I'm planning to make it like an all around sleeper bike but built with speed and being lightweight in mind.

Edit: Mechanical only
Shimano 11 speed MTB and road derailleurs and shifters are not compatible. The cable pull per shift and derailleur actuation ratios are different. See this Art's Cyclery page](https://www.artscyclery.com/science-behind-the-magic/science-behind-the-magic-drivetrain-compatibility/).

The MTB groups use a longer cable pull to be more reliable in dirty conditions.

While rear derailleur cable pull/actuation ratios are well documented, front ones are not, but I have to assume 11 speed MTB and road groups use different pulls and are not compatible.

MTB double cranks typically have a 10 tooth difference between rings whereas roads cranks have a 16 tooth difference. Cages on MTB front derailleurs are therefore smaller and will not work with road cranks.