Probably be OK, in a straight line, or gentle curves - If that hub motor doesn't push it too fast.
Unless a death wobble set in, as it got up to speed.........
Speaking of that, how would you control toe-in, with that cable steering, and no tie rod?
There is a video of him riding it, mostly straight and slow.
If it's made for looking cool most importantly and an interesting experiment in engineering secondly, then its a success and impressive to me.
As i see it- trikes are always making sacrifices in handling and design over the simplicity of a cheap bicycle.
I am the other way. I have a pet hate of cad designs that simply can't work. The designer is thinking they are clever and I am thinking the exact opposite. Artwork is all well and good and I've bought a few pieces in my life but engineering has to work. At least this has left the computer and actually been made but if it's too fragile to use it's a mistake, and I've made enough to know one.
That's true - A diamond frame bike is a vehicle reduced to utter simplicity.
But as far as trikes making sacrifices in handling and design, there are quite a few capable of 50mph downhill, while keeping their riders alive.
That one, not likely.
I do agree, though - It's art, but maybe as a prop for the next Road Warrior sequel.
Having the front swingarms so close to the base of the wheel... it may actually hold up.
In this design, there is no axle or leverage like there would be in a standard trike.
You can consider the front wheels to be 2 inches in diameter effectively.