Specication£º Size:8inch Max Speed:15KM/H(Alarm 12KM/H) Max Load:120KG Cruising Distance:15-20KM,depends on the weight of rider, road conditions anambient temperature. Tire size:360mm Vacuum Tire Electric Unicycle Weight:11KG Super Motor Power:350W*2(450W 500W Optional) Voltage:60V Battery Capacity:4400mAh. Lithium battery:132(Battery with load balancing,charging&discharging protection function) Working Temperature:-10-40degree(Best 10-30degree) Charging Time:60-90Mins Dimensions:height 60CM length 25CM,thickness 25CM Pedal distance from the earth:340*430*125mm