Installed BBS02 3 months ago. No problems until yesterday I noticed a slight “grinding“ noise only when pedaling and the motor is under a load. Does not occur when I put the bike on a stand and turn the pedals and motor kicks in. It is in sync with the pedal rotation. Bike seems to function normally otherwise. I took a video with sound but don't know how to post it. All parts are still tight.
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To see this working, head to your live site.
BBS02 noise
BBS02 noise
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Did you get this noise resolved? I have the same symptoms after only 38 miles. No sound on stand, or when pedaling with motor off.