?? ??? ???? ?????????? ?? ??? ?? ?????? ????? ??? ???????? ?? ??? ?? ?? ??????? ??? ?? ??? ?? ?? ???? ??? ???? ???? ?? ???? ?????? ???? ??? ????.The ZERO 10X controller is usually a 52V 25A or 60V 30A controller set. It's important to identify whether or not you do have a front and/or rear controller fault.?? ??? ???? ?????????? ?? ??? ?? ??????