I personally feel that speed laws are antiquated and need revision. The speed laws were enacted by the transportation safety board in the 50's when in order to standardize freeway speed limits they would put people in the passenger seat of a car blindfolded, and driven by an LEO
, would ask that person to say when they felt the car was going too fast or fast enough. The average of that was 55mph. if you ever done 100 in a car built before the 80's you'll no that it is scary so it makes sense.
Now a days we still are held to this standard when vehicle technologies, braking abilities, tire compounds and road qualities have made high speed travel far safer. anyone who's done 100+mph in a modern car knows that you don't even really feel it.
I regularly ride @ 85mph and have unknowingly sustained 100mph and the roadstar plants, points and stops pretty well making it easy and comfortable to do.
I think an 80mph freeway limit and 100mph open highway limit would be reasonable.