CC motor noise?

[DarrenG]

Hey all was just wondering if my motor is making extra noise or if this is just par for the course. It's been the same noise level ever since I got it so I just wanna make sure. And I've had for about a month and have probably done 500 miles or so. Take a listen:

https://youtu.be/1ZD4IIYqQGI

 

[Dunbar]

The clicking noise?

 

[DarrenG]

Yes that too now that I'm listening more closely haha, but I thought maybe there was an extra sputtering noise in the motor on top of the normal "whine" ... but maybe that part's normal?

 

[Dunbar]

The whirring sound is normal. The sputtering is the controller cutting power as the wheel speed approaches 20mph which is normal. My motor starts to resonate under certain conditions and makes a metallic rattle. I've ridden other brands of e-bikes with Bafang motors and heard the same thing so I think it's normal. I'm not sure if the sound comes from the motor, the controller or the bike (or some combination.)

 

[rmasa]

The higher pitch sounds normal for the motor.
But there are 2 noises that can be adjusted/fixed.
1) Adjust the rear derailleur maybe you got some cable stretch or something
2) Adjust the rear disk, seems like it is coming into contact with the pads

note: I am a bit old, and the hearing is not as good as it use to be (too much hunting)

 

[DarrenG]

Thank you both so much!

 

[DarrenG]

Ok so this time I know I'm not crazy.... there is a rattle that has formed in the front but for the life of me I can't tell where it's coming from or how to fix it. It happens both when the suspension is locked out and not.

https://youtu.be/n7c4m6117Hc

 

[youth]

Loose headset

Ok so this time I know I'm not crazy.... there is a rattle that has formed in the front but for the life of me I can't tell where it's coming from or how to fix it. It happens both when the suspension is locked out and not.

https://youtu.be/n7c4m6117Hc

Loose headset, battery/frame fit , or maybe the controller is banging against inside downtube? See if you can replicate by locking the front wheel & rocking fore & aft & also bouncing the the front end.

 

[DarrenG]

so it looks like it ended up being the battery... I may have to look into that velcro fix that others have talked about

 

[Brooklyn Tony]

What style/size (e.g. CC, CC Air, CC ST, CC Air ST) and size battery do you have? Curious if certain styles/sizes are more prone to rattle problems.

 

[DarrenG]

I have CC reg, medium, 10.4 battery. I bought it from a local Santa Monica shop about 2 months ago so don't know which batch it was shipped in.