im running 22s up front and im happy with em, more ground clearance, and it easier to clear trail obstacles, they make the bike sit at a height i like more plus the added weight keeps the front end down a bit lol. had 19s before, they were a ton lighter and i did find it harder to get it to turn even when i was barely on the gas
I break stubborn beads by placing a short thick plank of wood on the tyre and driving my truck on it.
Maybee not the most elegant was to break beads, but works for me.
I find that it works better if you remove the wheel from the quad first.