You can say that again, I've been running back and forth between Kingman and Riverside 2 or 3 times a month for the past year and if your not prepared to run at 90, you'd better stay in the right lane.
That right lane SUCKS between here and Kingman with spots that feel like it's going to rip a wheel right off.
Now the trucks that trashed it in the first place drive in the left lane through there.
(My younger Brother drives semi on that road and I give him grief about it all the time)