Largest tires someone has put on a salsa warbird

I’m trying to gather community notes on the largest tires anyone has ran on the salsa warbird running the 2x di2 setup. Its the damn FD that has me most worried (why’d you put the electrical connector back and inside shimano?)

I’m well aware of factory clearance of 45mm.

I’ve been running 48mm tufo thunderos on 25id/30od rims for a while now and they fit great, even in mud.

Please provide rim specs as well.
Super interested if the 2.1 mezcals, thunderburts, or any race casing xc mtb tire has been ran without much issue.

Thank you!