Drive Train Grinding Noise
Hi,
I have noticed that my transmission makes a strange noise, something I would describe as grinding. It is similar to the sound produced by air bubbles under water. I have included a link to a youtube video where I have recorded the noise: https ://youtu.be/q_5lLROkJdk (just copy the previous link and remove the white space after "https")
In the video you will see that I am backpedaling, but the noise is also present when normal pedaling (forward). I think it is mostly present when using the slow gears (high cassette rings and smallest crank ring). I can also feel vibrations when the noise is present.
The freehub has been replaced a couple of months ago, in a bike shop.
Any hint or comment about what could be the cause of the problem will be highly appreciated.
Thank you!
Willy