It's most similar to a unicycle but you sit INSIDE the wheel ... type of action sport requiring the user to ride inside a motorized wheel, close to the ground. Following is a transcript of ...

to the stand-astride electric unicycles. These last machines have a bulky battery and controller box atop the wheel, and [Dycus] set his sights on this by transferring it to a backpack with the ...

Since they won’t, I will. You can buy a street-legal electric unicycle, but it’s not what you described. The law permits electric one-wheeled vehicles that have a 2000-watt motor and a top ...