SRAM Powertrain noise

[candlewax]

Hi Everyone -

I am a new owner of a Transition Repeater PT (new SRAM motor) and after just three rides, a new and horrible squeaking noise has developed in the drive-side crank/chainring area. At first I thought it might be the chain (it's been pretty wet, so maybe needed more chain lube), but alas it's where the crank arm meets the spindle and motor housing. I assume it's just some dirt and grime in some of the internals and I would normally just pull the drivetrain apart and clean and re-lube, but being brand new to E-bikes and especially the SRAM motor assembly, I am wondering how far I should go on my own. The SRAM Powertrain manual says I should be able to take the cranks and chainring off (allowing me to get in and clean the area), but I would like to know if someone else here has run into this issue and whether a home cleaning fixes it, or if it is indicative of a bigger internal motor issue that requires visiting a shop/dealer.

Thanks!

 

[Polar]

I have no answer just saying I'm super jealous of the new powertrain.
Lucky you.

 

[Heliflyr]

Hi Everyone -

I am a new owner of a Transition Repeater PT (new SRAM motor) and after just three rides, a new and horrible squeaking noise has developed in the drive-side crank/chainring area. At first I thought it might be the chain (it's been pretty wet, so maybe needed more chain lube), but alas it's where the crank arm meets the spindle and motor housing. I assume it's just some dirt and grime in some of the internals and I would normally just pull the drivetrain apart and clean and re-lube, but being brand new to E-bikes and especially the SRAM motor assembly, I am wondering how far I should go on my own. The SRAM Powertrain manual says I should be able to take the cranks and chainring off (allowing me to get in and clean the area), but I would like to know if someone else here has run into this issue and whether a home cleaning fixes it, or if it is indicative of a bigger internal motor issue that requires visiting a shop/dealer.

Thanks!

Did you get this noise sorted out?

 

[candlewax]

Did you get this noise sorted out?

Yes, the noise went away after a few more rides. Chalk it up to being a new bike and just needing to break things in a bit. It's actually remarkable at how quiet the bike is, it's been a blast!!

 

[Heliflyr]

Yes, the noise went away after a few more rides. Chalk it up to being a new bike and just needing to break things in a bit. It's actually remarkable at how quiet the bike is, it's been a blast!!

How many miles on yours? My first one had a speed sensor problem and after 400 miles they swapped out the whole bike for me, which was cool of them. Now have 400 miles on the replacement and it just developed a serious issue but waiting to see how Transition / SRAM handles it before I post anything specific (video) online.

 

[uxrjav]

How many miles on yours? My first one had a speed sensor problem and after 400 miles they swapped out the whole bike for me, which was cool of them. Now have 400 miles on the replacement and it just developed a serious issue but waiting to see how Transition / SRAM handles it before I post anything specific (video) online.

So what happened? Can you explain more on the issues? Two bikes and two problems in a short ammount of time does not sound good.

Looking at a repeater PT as an option and worried about this.