24V 36V 48V Motor Electric bicycle Conversion Kit Gear motor with 9 spockets 12-28''wheel,150-1000w CCC,CE, ... -10Kg Electric system MotorFront wheel,light,high speed,brushlessGreat hub motor,16inch28inch wheel optional.DISC brake optional Rear wheel180w-250w for Eur market250w-500w ... ) PerformanceMax speed25km/h(EUR),32km/h(USA&Canada) 24V 36V 48V Motor Electric bicycle Conversion