I talked to a guy who put 4 same size tires on his sxs and had them balanced or put something on for balancing for pavement driving. Not sure the brand though.
I'd buy the ones with the deer hoof tread pattern. Nothing like messing with everyone else in the woods while you're having a good time. Sedona Buck Snort is the tire. In all seriousness, they would suck ass on the pavement.