The rear anti-tip wheel for the Go-Go S19 Folding Scooter is a good way to remain stable on uneven surfaces. Most power chairs and scooters are handy and nimble, but their maneuverability often comes at the cost of stability. To ensure safety, the Go-Go S19 Folding Scooter also uses these small anti-tip wheels. An anti-tip wheel is like adding an extra leg to a 3-wheel stool.