I have convert my bike with a Bafang BBS02 750w with a 48v 17amp battery. All going great after 300 miles. I purchased a programme cable at the same time which I haven’t used as yet. So far all I did was alter the top speed setting to max and kept it on 3 PAS. Was very pleased . Range was about 35 miles. I now have changed the settings to 5 PAS so far it works better . I do have to increase the PAS to 2 or 3 to climb hills but range has increased. Yesterday I did 20 miles and only lost one digit in the dash . Is anyone using the 9 PAS? If so how good is it .