Well I have had mine a little over 120 (according to the speed and others around me). She was not redline and may have got more, given enough room.
That said old Fiber may not had it in him to hang on much more on the Mastiff. The bike was stable, but being in the open, just to damn risky for me, one slip and it could have lights out Maria! Plus since it was on an open highway, no buffer for error what so ever.
We will see how the Buell does some day.
Now let me tell you about driving a Opel Calibria with twin turbos down the Autostrata in Central Italy, 280 KPH (around 175MPH) with room for more if it wasn't for the fast approaching curve. All while listening to some great Rock-n-Roll blasting from the stereo and air conditioning keeping it nice. Of course, if it had been Germany, some smart ass in a Ferrari would have blink their light in the left lane to let you know they are coming around and move it on over!