I think that it is pretty obvious that this would be a requirement, its not as though there is a conflict of interest as specialized don't make a competitor to the Wahoo
Fantastic the chain device was just too low hitting the 4 arms that hold the chain ring on.
It sounded far worse like gears grinding. Now I can relax and enjoy the power. Thank you all so much
I've just been investigating, with the bike on a stand using the walk mode holding the crank still I can clearly hear the rubbing sound so I think this eliminates the crank. I guess the crank is just transmitting the sound
I can feel the resistance in the crank every 90 degrees and the sound is coming from the motor even with the power off. When I was riding it sounded like the front disc rubbing. However when I checked its definitely coming from the motor area