Ebikers ive a newer xionda motor 250watt but im led to believe folk are putting up too thousand watt through them which is crazy there the smallest ive ever seen But im gettin that old clunking when it moves backways forward its beautiful to cycle but it wont give any power now to it throttle PAS and everything still on ,heres my problem how the hell do u open them theres no screws im waiting on the whipbar to see whats on the cassette side any help plz im guessing its a stripped out something or sensor but please there gotta be folk that know ,much love respect and good luck from dublin ireland that lil island right across your pond 🇮🇪☘️💚✌️

Try Tina at Xiongda; these motors have a history of being problematic.

Super long thread at Endless Sphere forum when the Xiongda was first introduced. I followed much of it with interest several years ago,
I recall two complaints...
1) Motor did not freewheel well with the gearing system,
2) If you rolled the bike backwards, there was a risk of clutch sticking and stripping the hears.
I believe the motor actually spun in reverse to engage the climbing gears?

I also recall the admin over there was very unhappy with his motor. SO hopefully, you get some feedback. Post a new threadm rather than add on to the old one.
,

https://endless-sphere.com/sphere/th...8#post-1654825