I run Wolftooth RoadLinks on my old mtb’s. I’m running 13-40 8 speed with a 90’s XT SGS 9 speed RD; 24/34 chainrings.

I have read that the shifting performance is not as good on small cogs. No issues with a 13t, but not sure with an 11t.

One of the keys is making sure you cover the RD capacity (chain wrap). With a 1x and a SGS it should not be an issue, but with a double you might need to avoid the small-small. A triple would probably not work well.

John