Did he kill anyone?...........no
Did he do any damage?......no
Did he mug an old lady?...no.
Did he break into a house ?.no
Did he cause GBH?.......no
Did he murder anyone?....no
Doesn't matter what didn't happen...at 166 on a public road, the potential for death is staring you in the face.
In fact, at 166mph, a bike will cut straight through a car and remove anybody from the gene pool who happens to be in the way.
People need to be charged for the consequences....of "what actually happened."......and not for "what might have happened."
If he had killed someone.....then that is a whole different ball game.....
Fact is ......he damaged no property......and no human life........It is a simple speeding offence....and nothing more.

So --- if I point a loaded gun at your head for a laugh, I get off scott free because I didn't actually pull the trigger, or if I fired it and missed I still get off because I didn't actually harm you ..... is thhat whhat you are advocating?
I can, however, see and, to some degree agree, with the point that you are making ( and I think is being missed) --- that other, potentially, more serious crimes have lesser punishments. Yes, the punishments meted out by the British Courts ARE totally out of step with the nature and/ or severity of the crime in mmany cases.
However, in this case, he
was breaking the law (however out of place some might think that law to be) and he
was creating the potential for some cataclismic mishap if things had (so easily) gone wrong.
10 mph over the limit is (although illegal) likely to happen regularly with modern inattention --- up to the ton is naughtier still --- but over a ton and a half is plain, utter stupidity. OK he might believe (and actually be able to) he can control the bike at that speed --- but there are other road users who could so easily have popped a spoke in his wheel.