Ebike kit from China?

[Bps]

I bought an ebike kit from Jue Shuai! 48 volt 25amp 100 watt fat tire 26” in December so far no ride! If you spin the rear wheel motor in reverse it show mph! Out of sorts they won’t respond any more! It has a s900 display witch powers up but no go ,any thoughts?

 

[AHicks]

Have you looked through the SW900 owners manual to see if yours is set up correctly?

 

[harryS]

No error messages on the S900?

How are you trying to start it? Using throttle or pedal assist. Does it have a walk mode. If it does, try that.

 

[Bps]

I bought an ebike kit from Jue Shuai! 48 volt 25amp 100 watt fat tire 26” in December so far no ride! If you spin the rear wheel motor in reverse it show mph! Out of sorts they won’t respond any more! It has a s900 display witch powers up but no go ,any thoughts?View attachment 57106View attachment 57107View attachment 57108View attachment 57106View attachment 57107View attachment 57108View attachment 57106View attachment 57107View attachment 57108View attachment 57106View attachment 57107View attachment 57107View attachment 57106View attachment 57107View attachment 57108

Yes it appears the s900 display works

 

[Bps]

Yes it appears the s900 display works

I’m sure one of the hall sensors in the rear wheel motor is broken! Does anyone no of repairs on such a motor? I got took for $700 and it’s mine now!! Might try to build another after repair

 

[harryS]

In another thread, I posted some videos on how people test Hall sensors. I've been lucky. Never had a bad motor out of more than a dozen.

eBike conversion kit

Hello all, Need some helps here. Info: Voilarmart conversion front wheel kit, 36V and 500W Mighty Max F2 batteries, 12V and 12AH each (serial connected) What happend: When everything connected, I twist the throttle and all I got was the wheel turned about 1 or 2 rounds and stopped. I can...

electricbikereview.com

Another handy item when it's is a hobby is an ebike tester, about $10 and 8 weeks of waiting time. Tests both controller and motor. The guy really wastes a lot of time and doesm't explain it fully, in my opinion, but there you go.