Granite Brushless noise - is this normal?

[Jack_]

Hi All,

I got an Arrma Granite Boost last month which I've been upgrading. I just installed the brushless upgrade which has the power module fully assembled.
I've heard that these motors can be a bit noisy and make a clicking noise from the magnet, but wasn't sure if what I'm hearing is normal. The sound disappears once throttle is applied, but it's very noisy when rolling or with very light throttle. Videos attached. Any help appreciated, cheers.

https://photos.app.goo.gl/iwu25NYRUE1KGUoe6

https://photos.app.goo.gl/LpHkui1HRUzRiyjp7

 

[Jerold]

Welcome to AF!

Might be cogging. Cogging can happen with brushless (mainly sensorless) motors at start up. It can be a shuttering that would cause the gears to slap back and forth.

 

[RCbuzz]

Sounds pretty normal to me, mine does the same.

 

[Jack_]

Thanks for the responses guys. I messaged support at Arrma and they seemed to think it was all normal too. So all good! Cheers