Interesting. I doubt the bike is much faster if you wring it out than 100mph. When people start getting their bikes, we'll have to see what tires actually ship on the bike.
I just checked. My pickup will go 30-40 mph faster than the rating on my tires. I'd go to jail if I went that fast anyway.
Maybe they're just warning you that the tires are good to any highway speed, but if you drive illegally, you might blow a tire and possibly die.