My gng was good at first.
MY setting is 19cells battery(fully charged 77V) and max amps is 38amps. So I used 2900w on my gng kit.
It's chain drive kit of gen 1.1.
But some time I had a trouble. When I took 6~8 spd sproket, freewheel moved backwards and sounded tapping like photo.
I can really see moving.
But 5~1spd is good. no sounds and not move. I think maybe steel axle is very weak and it can't hold up the motor torque then bended.
So... what do I do for not moving shaft ???
MY setting is 19cells battery(fully charged 77V) and max amps is 38amps. So I used 2900w on my gng kit.
It's chain drive kit of gen 1.1.
But some time I had a trouble. When I took 6~8 spd sproket, freewheel moved backwards and sounded tapping like photo.
I can really see moving.
But 5~1spd is good. no sounds and not move. I think maybe steel axle is very weak and it can't hold up the motor torque then bended.
So... what do I do for not moving shaft ???