I should drop these guys in here, Curvway boards.
Not particularly sold on the brake/throttle cable. Wireless (non-regen) braking sounds ridiculous, but would you do it here instead of this!? And wouldn’t the disk be better on the front?
Hate to say it, but it’s the aesthetics that puts me off this layout, that neck that runs over the front wheel 
. Virtual pivot, or dirt surfer style 