Well...
I've clocked another ~400 miles on my second TQ motor (the first became unbearably noisy after ~400 miles) and the grinding is about as bad as the first motor. I suspect the issue is again with one of the clutches. To add insult to injury, my LBS no longer carries BMC (who was useless...
Yes, when the Bike was new (and after the motor was replaced) my BMC with the TQ motor was nearly silent. I loved it. After one failure and possibly a second looming, I’m not as enamored.
I should add that the ticking/grinding noise that I’ve experienced does not seem to correlate to how much power I exert as others have reported. The grinding did sound worse as I increased the power level.
Also I forgot to mention that the shop, after not finding the ticking source initially...
Thanks for that link. I will check it out.
When I first got my BMC in May, 2023 it was dead quiet (and a blast!). After about 100 miles I started hearing a ticking noise occasionally corresponding to crank rotation. It did not seem to correlate to power on or power levels. I took the bike...
Just joined to learn more about my TQ eBike motor. Specifically why it makes ticking and occasionally grinding sounds even after a warranty replacement.
I live in the E. Bay, CA, USA.