hub motor conversion kit 24V-48V,200w-750w CE,CCC,EN15194,RoHS ... hub motor connversion kit (we are the real manufacture,gear motor,DC motor)CE,CCC,EN15194,RoHSGear motor BATTERYMOTOR WHEELWEIGHT24v ... 150w-350w12"-28"700C16KG36v-10AH LIMN(Frame type)FRONT gear motor(100MMwith GEAR BRAKE ADAPTER) 150w-350w12"-28"700C16KG36v-10AH LIMN( ... 32km/h(USA&Canda) bicycle engine&ebike engine&bicycle conversion kit