My CSC 150 (California Scooter) tops out at around 66 mph. I drive on the freeway all the time. Even here in the land of nutty drivers and cell phones and folks running 80+ mph on the freeways, the right lane generally runs at around 50 to 55 mph. I just mostly stick to the right lane and I do just fine.
'15 RX-3 CSC Cyclone (I'm getting the 1st one!)
'06 KLR 650 (Red...the fast one...)
'10 California Scooter (my Baja Blaster!)