I recently read about someone else having the same problem, and "fixed" it by adjusting the tire pressure... be dammed if I can find that thread now.
I have a "shimmy" or vibration which from the ****pit (bwaahaha wouldn't let me type "c0ckpit" lol), at speed, looks like an unbalanced wheel shake, which is very slight/unnoticeable at slow speeds but gets progressively worse until about 130/140kmh (80mph) where I feel unsafe to go any faster (but previously had no such concerns on the 130 stock tire).
I did my best and gave up searching, but someone mentioned the tire pressure fixed this for them. Anyone see the same post or know what pressure change was applied? More or Less pressure? I'm guessing less, but not sure. I am presuming the tire was properly balanced when installed of course, it is very new still.