Bicycles; Bicycle frames; Electric motor cycles; Electrically-powered motor scooters; Folding electric bicycles; Mobility scooters; Motor scooters; Motor scooters and structural parts therefor; Motorized bicycles; Motors for bicycles; Self-balancing one-wheeled electric scooters; Self-balancing two-wheeled electric scooters; Self-balancing unicycles; Stands for scooters