Not easy to calibrate a ride on the road. I'm not sure the device has to be quite so elaborate though. I suppose overkill is good if you are going to sanction someone.
Apparently they go after bikes with large tires, like the one shown in the picture.
Originally Posted by
2old
The picture that I saw looked (to me) like the rear wheel (in this instance) was on a portable dyno. I didn't think they were measuring speed since it would be load dependent.
The regulations are such that the speed is supposed to be limited. It doesn't really matter what the load is for that, because it should be limited despite the conditions. The only trick with these things is they have to determine when the boost cuts out. A dyno to determine power would be a lot more complicated.