Well bikes was my number one hobby until boats took that over. I currently own 2 turbo bikes, and I know what its like to drive like an idiot, I have done it, and not to afraid to admit it. I did alot of street racing with both cars and bikes. Also did alot of Grudge racing across the country at alot of big tracks, running with some buddies of mine that NHRA,MIROCK and Pro-Star riders.
Every friday and saturday night we would be out riding, and I would always be racing the guys I ride with down the freeway. (mind you, this is at like 3 or 4am, so far less traffic than the idiot in the video in the middle of the day.) and my bike will top out about 207MPH with 28psi of boost.
If I ever feel the rush to do it again, I will take my helmet cam and video 200+ for you guys so you can see what its like passing a car doing 70.
Glassdave nailed it right on the head, most guys gear the bikes for more acceleration, but never correct the speedo, I have a 100% correct speedo for the gearing (was set by radar gun), and I run a Garmin GPS IV that you can clearly see the speed.
All in all, that guy is maybe at best doing 110mph, more like 95/100 would be my guess.