One size taller & one size wider all around will indeed make you wonder if it's the same bike!
While the new wave of tires for ATVs is radial's

for the average Joe that mostly uses their bike for utilitarian purposes good old bias ply works just fine.
While Mud Lites work well as an all around tire, they do wear at a much faster rate than some others, for my money Mud Bugs are by far the best bang for the buck! They cost the same as Lites, are slightly more aggressive & last much longer. I speak from experience as I have a set of Mud Lites on one bike & a set of Mud Bugs on another both installed at the same time.