The rear wheel can stop rotating and lock up while in use, posing a fall hazard.
Razor has received more than 700 reports of the rear wheel malfunction, resulting in four injuries, including one loose tooth and three scrapes and bruises.
This recall involves Razor RipStik electric motorized caster boards. The boards have two wheels, a hub motor, and a lithium ion battery. They have a wireless digital hand remote that controls the speed up to 10 mph.