@oscarwagner The tires are manufactured by Kenda and the max recommended pressure is 50psi. These are not knobby trail tires. The are made for riding on the street. You can find the full specs of the bike at the link above.
Also, I feel I should point out that the selling point of e-bikes is the ability to move forward under its own power, not the bike or more specifically, its components. I found during my research that the lower end e-bikes (the ones in my price range) had lower end components, therefore, shifting gears is not always a smooth operation. That being said, I don't shift gears all that much. If I ever find the need to get into a lower gear, I generally just use the throttle to assist. So the components are really just a nit-picking issue.
I hope all of this info helps. I really do think e-bikes are the future for us measurers, especially the aging ones, like myself.
Here is a link to the tire: