Ok.. took measurements... The Pad is too big, it doesn't fit under the windshield and in any case for a motorbike I don't find it very proportionate. I opted for a 6.6" Rugged Smartphone, definitely better and highly visible. It's also easier to find brackets. After all, on a motorbike, we go to look at the world and not at a screen.
I will definitely have fewer problems with My Route on my motorbike.