noise and vibration it creates when its around 30%. Im not sure if it's the motor or bike thats resonating at certain frequencies?
Hi mags2 welcome... Do you have a link, make, brand or a description of what you purchased??
Any pics of the bike as is??
Noise is a major factor when riding an ebike specially from a kit, it could be something from the motor its self, something from how you built it or the actual bike. Have you tried turning the bike upside down and starting the motor, its a bit tricky make sure you can turn it on, active throttle or PAS whilst upside down, however if you can, you can usually listen to the motor see if anything is catching and check your build.
When i first put my first kit on there was a vibration noise and i looked all over, when it was upside down it never happened, after a lot of tape on various things that could move I found it was the front brake mount, the tiny piece of metal that hinges the cable in on V-brakes...
Now the sales pitch... sorry but you can't blame a man for trying... if you have a battery my Yose front hub 26" wheel is up for sale am sure we could figure out a battery attachment if needed...