... "-28"700C 7-10Kg48V KIT 12"-28"700C 7-10KgElectric system MotorFront wheel,light,high speed,brushlessGreat hub motor,16inch28inch wheel ... electric protection circuit PAS1:1 intelligent pedal assistant systemControllerCYCLEMAN 24v intelligent brushless controllerChargerAC100v-240v,2 amps smarhargerThrottleTwist intelligent speed control(no throttle for ...