I have taken mine to 150, I had a clear shot on a freeway without any cars in front of me. As soon as I hit 150 I throttled down.
I agree with an earlier post, getting pegged at that high speed by the CHP would really suck. Plus I hit a school bus a few years ago at 80 mph on a motorcycle and that put me in the hospital for a week with cracked ribs, internal bleeding etc. Not looking forward to that again. Anyone know specifics about taking bikes to a racetrack? I heard in southern CA they have tracks you can take your bike to and open it up without the worry of a bus pulling our in front of you.