5 years of S2 production experience with over 100,000+ S2 scooters sold. We learned and introduced the KS series. The KS4 exterior styling continues the high-end design of S2. 17 Miles Long-range and a top speed of 19 mph allow the scooter to focus on commuting. Wider display for safer riding during the day and night.Upgraded 350W motor, honeycomb tires, and rear suspension with dual brakes. All of these make up the next-gen electric scooters.