Hi. Im new to this forum so this is my first post and it might be quite a long one, so bear with me pls
. I'm also new to ebikes and I'm hoping someone can help me.
I bought a 5000w bomber clone off Alibaba. I noticed there was a sort of grating vibration when the bike reached around 12mph but went away as I kept accelerating. It also happened when going up hill but the noise was more annoying than problem. Also this was happening from the first ride. Then after a few rides the motor started making a really loud unbearable grinding sound.
https://youtu.be/F_Xk-m7H_sA
The bike seller asked me to swap the hall sensor to the spare connector. This worked and the new noise went away but came back after a couple more rides. They sent me a new controller and motor stator which I swapped both over but the noise still happens even though I've swapped both of them, and tried both hall connectors. This video is after I swapped the motor and controller. It seems to be making the same noise.
https://youtube.com/shorts/Bg1ecdCsTaM?feature=share
I've also tested the halls on both motors and they are working. The controllers they sent me are basic square wave 80a controllers so I tried a sabvoton 100a controller but it still makes the noise. I ran the controller test using the app and the motor was running backwards so I changed the direction in the settings. I'm totally stumped what to do next.
After waiting for 3 months for the bike to arrive I've now had the bike for 5 months and have hardly been able to ride it so if anyone can help me I'd be so grateful.
. I'm also new to ebikes and I'm hoping someone can help me.I bought a 5000w bomber clone off Alibaba. I noticed there was a sort of grating vibration when the bike reached around 12mph but went away as I kept accelerating. It also happened when going up hill but the noise was more annoying than problem. Also this was happening from the first ride. Then after a few rides the motor started making a really loud unbearable grinding sound.
https://youtu.be/F_Xk-m7H_sA
The bike seller asked me to swap the hall sensor to the spare connector. This worked and the new noise went away but came back after a couple more rides. They sent me a new controller and motor stator which I swapped both over but the noise still happens even though I've swapped both of them, and tried both hall connectors. This video is after I swapped the motor and controller. It seems to be making the same noise.
https://youtube.com/shorts/Bg1ecdCsTaM?feature=share
I've also tested the halls on both motors and they are working. The controllers they sent me are basic square wave 80a controllers so I tried a sabvoton 100a controller but it still makes the noise. I ran the controller test using the app and the motor was running backwards so I changed the direction in the settings. I'm totally stumped what to do next.
After waiting for 3 months for the bike to arrive I've now had the bike for 5 months and have hardly been able to ride it so if anyone can help me I'd be so grateful.
