Genuine speed, I reckon would be about 150-160ish which will probably be about 170-180 on the clocks.
To get 200 you would need a turbo with a lot of boost in and a heavily modified engine or alternatively heavily modified aero's.
I've done a number of top speed meets and the genuine speed is always well below the speedo reading.
To give you some idea, my measured top speeds for various bikes were
Fazer 1000 120hp 152.4
ZX7R 125hp 158.6
GSXR1000K4 161hp 194.8 (long arm and lowered)
Hayabusa standard 176hp 194.1
Hayabusa with nitrous 225 hp 200.3