The knobs does not seem to me like they have any height of invention, or originality, especially if it is known practice to use somewhat similar contraptions for the same purpose. A patent that would burst like a balloon?
It would be fun if they sued people and if then later the patent is challenged and found to be void, they would have to pay back any damage they caused, or sued to do so and pay for it all. And they will not look good in the eyes of the riding public, who might prefer to not having anything to do with them in the future.
I think they will thread with great care. I would have thought that they would like be too careful to peck on one guy making his own two ali skateboard wheels and put them on his own bike, or a couple for his friends.