1.Cassette freewheel Easily assembled 2.Variable Shift 8s-0s 3.Compact,low noise and energy saving 4.CE,CCC,EN15194 Certifica Features of the Product:1). Applicable to E-Bike, E-scooter, E-Tricycle ,etc2). Small current, high efficiency and long riding distance3). Maintenance with convenience4). WaterproofParameters of the Product: Rated Voltage (V)24/36/48Cable LocationShaft center rightRated ...