When your throttle lever finally breaks, you can easily replace it with a new throttle lever (wig-wag) for the EV Rider Transport Folding Scooter. One of the beauties of the throttle pot system is its simplicity. Pressing the wig wag lever, also known as a throttle bar or potentiometer thumb bar, to one side or the other is all it takes to move the scooter forward or reverse.