Well either way it's only theirs.
As for the math it's sort of like this at this point:
X=10 what does y equal?
Not enough information to solve for y.
That is to say you don't "know" what they are using and how it's setup yet. I respect your EV experience but again lets see what it does first. (Test ride maybe)
I'm looking at the human and business side right now which is this saying that comes from the marketing field:
Nothing kills a bad product faster than great advertising.
IOW if it's shown to be not even close it likely won't go well.
The people on this forum know that range has a multitude of factors that go into "real world" results.
I could ride in the cold, upright and into the wind with the throttle pinned and never get close to any of the major manufactured bikes' claimed range.
It's just physics. You don't get a gas cars claimed MPG if your going 90 MPH either but people just fill up the tank when the needle says E and don't give it a second thought.
Do you have an acceptable "real world" range number from a 200 mile claim at a straight 60MPH?
No snark or sarcasm in the question, I'd really like an answer.