● With smallest turning radius 1320mm-1389mm ( width 520/550/685mm) ● DC Brushless motor with high electric efficiency , maintenance free. ● Full sealed battery free to maintain, big capacity 80AH fit for high-intensitive use. ● Max speed limit button can release brake when handle upright, reduce turning space greatly. (option for Germany Frei handle) ● High travel speed is up to 5.3-5.8km/h, improve productive efficiency. ● Floating balance wheel supports automatic height-adjusting. ● Horizontal drive wheel provides convenient replacement.