onewheels suffer from a problem known as nosediving in which the board shuts off when it can't supply enough power to support the rider, as the board is self balancing this is a problem intrinsic to the board's form factor. The board works in a similar fashion to balancing something like an umbrella on your hand, as the rider leans forward it creates an imbalance that requires the board to accelerate in order to keep…
FutureMotion must equip all onewheels with safety wheels on both sides. Also known as Fangs bumper wheels. This must come standard from factory, just as safety belts come with car. physics is no excuse for lousy engineering from FutureMotion and complete disregard of life threatening diving condition!
I can’t argue that fangs on the front could be safer but most riders I see would probably not recover a nose dive with them.