Your frist HUGE mistake is using a movie to think of real world manuvers. Those bikes are either really heavily modified with lots of parts from completely different parts, many are even dirt bikes with the tupperware to make them look like what they are supposed to be with sound dubbed over to hide their real engine noise.
FRIENDLY SARCASM FOLLOWS
If you really want to try, go ahead, take the 600(+) pound FJR with 50 series tires, 3 inches of travel, cats and pan 5 inches off the ground and soft aluminum wheels and try a few, let us with smaller cajones/huevos/guts/wallets read your results, or better yet see the videos.