Bafang Ultra Motor (M620) Ridden Very Gently for 3,000 Miles - Service Required or Not Necessarily?

[PCeBiker]

here... 9 bucks and you get a whip with good leverage, a second freewheel tool and a cassette tool to boot.

Amazon.com

I don't need a chain whip. That's for a cassette.

I just need to step on the pedals to tighten up my cassette.

I may need to shorten my chain a link or two?
I'm going from an 14 tooth small cog to an 11 tooth.

 

[George of the jungle]

Hi friends,

I have ridden a fat-tire based Bafang Ultra Motor (M620, G510, UART) heavy ebike very gently for 3,000 miles.

I've always ridden in peddle assist mode, rarely if ever use the throttle, always try to keep the wattage low, and the 9-speed gear selection appropriate for the speed, in order to avoid 'lugging' the motor. I definitely don't ride the bike like a scooter or motorbike, and sometimes ride with no power assist at all (all manual peddling for the exercise).

This is an original OEM ebike setup, the motor was built around 2020-2021-2022 (unsure if it has the nylon or plastic or metal gear, and the interface is UART), and I've been riding it for 2.5 years, accumulating the 3,000 miles.

In case it matters the system is 48V, 30 Amp (dual battery setup), a knock-off from the Bikonit Warthog for much less price (now discontinued).

The motor has been behaving well, it does make some 'whining' noise which I understand is normal and I've learned to ignore.

Motor has no performance issues (except one unique time when it threw Error Code 30, Communications Fault, over a year ago, and never since), and rides very well.

I've never had the motor 'lubricated' or serviced. I am not at all handy, cannot do anything DIY, thus servicing it myself is unfortunately out of the question. Even taking the motor off the OEM frame is not something I could handle, in order to send it for servicing.

Please share your thoughts, on how much life I can expect to get out of the motor without servicing it, now that the Bafang Ultra Motor is at 3,000 miles, and continue riding it gently?

Thanks in advance for any thoughts.

I would take it somewhere and get it greased.. I had less than 3k on mine and the steel gear and rotor gear were worn badly and whining allot.. They did not put hardly any grease in the older models.. I bought a new Moter with quitter gears and opened it up to add grease while it was off the bike because of what I seen in my older Motor.. The new onw is full of grease kind of a black never seez if you know what that looks like. And all I hear is tire noise now.. I don't do Mountain biking with it just street for exercise Im 73 but drive it kind of hard.. Old Motocross guy.. Still like to cook it around cul-de sacs when it's clear.. Im still waiting on parts for my old Motor from Greenbikekits and Anna said most of there customers with these motors open them up and re-grease them every 1200 miles or so.. I think that is a bit soon for my kind of riding... Good Luck..