Click click click

[Half Fast]

We have an intermittent clicking noise on our tandem that makes only occurs when pedaling and is sync with pedal stroke. Crank arms are new and torqued properly, pedal bearings are good, chainring bolts tight, seat post greased, motor (BBSHD) only has a little over 100 miles on it. It doesn’t happen on the work stand and, as noted above, is intermittent. Flat, climbing, pushing hard: it can happen anytime. Comes and goes randomly. Could it be motor related? Motor doesn’t move. It’s firmly clamped in place.

 

[dodgeman]

I thought the same thing a few months back, a clicking and I thought the worst . They replaced my pedals and front chain ring. It was most likely the chain ring in my case.

 

[Jeremy McCreary]

Several recent discussions on how difficult and aggravating it can be to track down abnormal noises in an ebike. You've covered most of the usual suspects. How about the bottom bracket?

That's where my last noise strongly synced with cadence came from. Started out as a click but evolved into more of a scrape. Worse with high pedal force, especially on the left. Worn bottom bracket bearings were to blame.

Good luck!

 

[stompandgo]

Try riding two up and then standing and pedaling out of the saddle. Does the noise go away?