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The fact that you say that it works "in sync" with the pedal revolution and that pressing the pedal makes it work better it proves 100% it's related to the PAS sensor. I suggest removing the crank lever and check if the PAS is not moving or maybe dirty. The issue is there :)

It's probably the PAS sensor on the left crank, how you checked if it moved?

Thanks, I found out now that there's basically a monopoly from Shimano for many components.

I'm looking to replace the entire drivetrain. I'm confused about the front crankset. Currently I have the Shimano fc-m311 which has 3 fixed chainrings that are very worn-out. To replace this, is it mandatory to buy the exact same model or can I buy something else that maybe allows to replace the...

Hi, I don't have a throttle on my Moscow (Europe here). But yeah, I ordered a new bottom bracket to replace and see if that fixes the issue.

Would any brand or model of a 68x122mm bottom bracket with square tapered design fit on the Moscow or you specifically need the Shimano or NECO one?

Regarding this issue with the PAS sensor I removed the crank lever, removed the PAS sensor, cleaned it since it was rusty and put it back tightly (before the outer fixed ring was a bit loose) and the issue is still there and still happening during gear shifts and bumps. I'm starting to wonder if...

Also they're on purpose avoiding answering my emails. I sent many in the past months with no response. Today I tried a different email pretending to be interested in the opening times of the store in Munich and they answered 15 minutes later, they also told me that nor the store or the factory...

What should that tester tell me? The motor works fine despite the weird nose. At this point I should just let it go and live with it since neither the company or other service centers are willing to help... To be precise I was saying the company is actually owned and controlled from China...

I think they're starting to show what they really are: just a Chinese company reselling their stuff under a German brand.

So basically I'm trying to find a specialised centre than can try to -at least- diagnose what is wrong the motor and it's worth fixing and I'm having unexpected issues. No center I asked said they can fix it since they don't either deal with hub motors or with NCM (even thought it's probably a...

Does anyone know who I have to contact to reach leon cycle? The European store is not answering, alto the same seller on Amazon.it where I bought the bike is not responding.

My Moscow motor has been making this weird noise at about 20km/h and disappears at higher speeds. You can hear it from this video from 8 to 12 seconds. Any ideas? https://drive.google.com/file/d/1AMs-reeoz3gB06U_wDxdFLhDovsyyXv3/view

Hi, what kind of tools do you need to remove the crankset and access the sensor?

My issue hasn't disappeared, is your issue still fixed as of today? I'm gonna have to try myself after I buy the right tools.

That's exaclty my issue, have you checked if the PAS sensor hasn't moved? Mine did move but then the issue came back so I'm not sure what it is at this point but I can assure you even a small movement to the outer part of the pedal can cause that.

Didn't fix the issue...

Good tip, I'll try that!

Hello, I took the bike to a repair shop, they cleaned all the contact and cables, they removed and put back again the sensor and still the problem hasn't been solved. What really puzzles is why the sensor would cut off power for less than second (it's not 2 seconds like I wrote before) when I...

Hello, I washed the NCM Moscow with the pressure washer and since then (or I think it was since then) 90% of times I go over a bump/hole or I switch the front gear the motor power is switched off immediately (imagine that when you're on trail uphill) for 2 seconds even if I don't stop pedalling...