How wide (tire) can I go on a Giant Revolt?

For 700c rims the max on the revolt advanced is 45mm. I was running a 2” on the front but it was too wide and rubbed with mud. 

now I have a 650b rim set with a 2.1” on the front and a 47mm on the back. Its really not feasible to go larger. I’ll be using the 650b for the BC Epic 1000 where I’ll need the extra shock absorption. And for gravel races I’ll put on 40mm tires on the 700c rims. 

ive lost an inch of clearance by using the 650b set up and it’s noticeable when riding mtn bike trails but for everything else it’s awesome. The bike is definitely faster feeling with the 40mm on 700c.