... DIY electric bicycle wheel kits Electric bike kit 12-28"wheel,24-48V CE,CCC,EN15194,RoHS Electric systemMotor: Front wheel,light,high speed,brushlessGreat hub motor,16inch 28inch wheel ... circuitPAS: 1:1 intelligent pedal assistant systemController: CYCLEMAN 24V ,36Vintelligent brushless controllerCharger: AC100V-240V,2 amps smarhargerThrottle: Twist intelligent speed control ...