... are the real manufacture,gear motor,DC motor)CE,CCC,EN15194,RoHSGear motor BATTERYMOTOR WHEELWEIGHT24v-10AH/36V-7Ah ... 28"700C16KG36v-10AH LIMN(Frame type)FRONT gear motor(100MMwith GEAR BRAKE ADAPTER) 150w-350w12"-28 ... :Front wheel,light,high speed,brushlessGreat hub motor,16inch 28inch wheel optional.DISC brake optionalRear ... (Eur) 32km/h(USA&Canda) bicycle engine&ebike engine&bicycle conversion kit