Electric bike conversion kit 200W, 250W, 350W,500W brushless motor 20", 26", 28" wheel 36V/12Ah, 36V/14Ah, 48V/12Ah ... for converting normal bicycle into electric bicycle, easily assembledFront Hub Brushless Motors available: 200W, 250W, 350W, 500W (optional) CNC sidewall ... Pedelec as EU required) Smart controller: totally match the motor Cut-Off Power brake lever Power indicator Throttle & handle ...