... bike kit 350W 4.CE,UL, RoHS DIY Electric bicycle conversion kit Gear motor with 9 spockets 12-28''wheel ... CCC,CE,ROHS,ISO9001 Let's make things better !electric bicycle conversion kit FOR EURPEAN MARKETBATTERYMOTOR WHEELWEIGHT24v-10AH LIMNFRONT gear motor ... 28"700C7-10KG48v KIT 7-1OKG Electric system MotorFront wheel,light,high speed,brushlessGreat hub motor,16inch28inch wheel optional.DISC brake ...