Bearing Man

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  RobertK.

• Feb 6, 2025

Hi. I have a question about my Bosch Performance CX gen4 motor. When I am pedaling the motor all of the sudden skips a beat. Sort of like a broken hub ratchet would do. And that skip is huge in length when it happens. And then recently somehow when back pedaling it feels like at some point in the turn axle or bearing gets stuck and chainring starts to spin backwards too. What could be the problem?

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  Lukpaluh

• Aug 6, 2024

Hi thanx for answer in my question about replace bilt ,recently installed new bosch gen 4 motor under warranty ,loses outside bering.
So after receiving new motor have heard ots worth it swap or at list put some lock tight blue or green on bolts, so I did but ow I read about it and ow considering swap them for zinc one ?

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  Heated

• Jun 3, 2024

Hi, Are you able to tell me if these noises are normal for the syncdrive pro(pwx3)? bike is basically brand new.
start of this video the knocking sound

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  Jordi Diego Morella

• Oct 5, 2023

Hi, my Shimano E8000 motor is doing what I've seen in youtube as "duck noise" .
I sent it to your partner in Spain Tech-Ebike (Sacha is the name of the guy who did it) to get the bearing replaced and it still does the noise. I told him the issue still continues but he has not given me a solution.
Could it come from the sprag bearings? Do you know where can I find them?
Thanks a lot

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  Johnnny

• Jul 19, 2023

hello, I'm sorry for the trouble, can you make a video how you disassemble and reassemble the plate because in my country Moldova there is no service that can repair this type of bike. Motor: Yamaha PW-X.

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  Johnnny

• Jul 18, 2023

Hi, i have big problem with my bike Yamaha Atala YAW S Whistle Yamaha PW-X I have ER 62) motor pwr off/on​

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  Enonchong

• Jul 10, 2023

HI! - I'm thinking of purchasing a Canyon Strive ON despite really wanting the Torque ON purely because the Strive has a Bosch motor. Is this a good idea? I'm just really weary of the fact that EP8 motors seems to be unreliable and a pain in the ass to warranty/service..

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  KTMJack

• Dec 26, 2021

Hello Would you have parts for a E8000 I need the magnet next to the torque sensor

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  rolandporogi0622

• Dec 22, 2021

Hi! How good an idea is it to lubricate the outside of the joints as well?

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  Waynemarlow

• Jul 6, 2021

Hi, just about to fit a Bafang M600, someways back I seem to think you made a comment about needing additional seals /protection between the pedals and crank seals for this motor, am I correct in this ? Or can you point me in the general direction of what to look for on these motors in regards to UK mud proofing

Thanks.

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  syncro

• Apr 6, 2021

Hi Peter, thank you very much for your offer. This week I'm going to pick up the bike from the dealer and check to see if the two torque sensor pins are properly connected. If I need a component, I will contact you.

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  Ulf Nilsen

• Apr 3, 2021

Hello . I have a Trek powerfly ( 2019) with Bosch CX . and a DIY guy

Can you rec what to do to servicing the motor ? things to be changed ? .
Can you supply the special parts ? , or is it common marked parts for gaskets -bearings etc ( when you are in the business).
Best regards
Ulf

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  steve_sordy

• May 23, 2020

Do you fix Shimano motors? My mate's motor is out of warranty and the bearings sound a bit rough.