LTWOO ER9 & ERX - Electronic groepsets

[strayan_rice_farmer]

Another masochist eR9 beta tester chiming in:

As with the user above I also had sub-optimal interactions with their customers service, with typically 1 business day gaps in the reply time, so getting a replacement part which I had damaged took a total of 5 days to be dispatched.

Regarding the shifting performance, it's quite good. A few rides so far and no missed shifts or issues with the groupset not waking up.
Shifting under load up to 200w is crisp and the app integration is very good. Being able to adjust each cassette and chainring offset through the app is fantastic for setup, during my first ride I was able to whip the phone out and fine tune the trim whilst riding.
Regarding the trim function, I'm not sure if it is a result of the latest update but you can now trim in both directions (however) the trim direction is not controlled by the user. Essentially whenever you hear front chain rub, pressing shift again will trim the FD if the system determines it needs trimming, and there seems to be several steps. I.e if I shift from the 11th cog to 9th there is a trim step, then 9th to 3rd it will trim again, then the same the other direction.

Install wise it was easy, not having to run gear shift cables saves some grey hairs especially if you're fully integrated. The YouTuber Klein concept has a solid 90min install video which walks through all the steps.

[Maden]

Another masochist eR9 beta tester chiming in:

As with the user above I also had sub-optimal interactions with their customers service, with typically 1 business day gaps in the reply time, so getting a replacement part which I had damaged took a total of 5 days to be dispatched.

What was the part?

[Sebastian]

So they replaced a part that you damaged? Sounds like they did more than they had to, right?

[strayan_rice_farmer]

What was the part?

I had gotten some debris stuck into the left shifter hydraulic system, essentially i accidentally turned the plastic line plug the wrong direction then couldn't get it out without using an extractor screw. Pretty big oopsie for a lapse of concentration 

I paid for the replacement part since it was my bad, so it's nothing special in terms of customer service.

[boxof13]

I can confirm with the latest firmware update, the trim options are now more refined. The front derailleur will decide the best trim position. I also noticed that they have fixed the incorrect gear selection showing up on Wahoo. It was showing 12 speed when in fact I was on 11 speed cassette. I cannot confirm if this is also fixed on any other head unit. It is still showing that the battery is low even when fully charged. Hopefully they will fix this on the next update. Well, it looks like LTWOO is certainly working on making the groupset better and better. Kudos to them!

[Dmgreen13]

For those that have installed shifters, how do you get the rubber hood cover back far enough to get access to the tightening bolts?

Also if on carbon bars how much did you need to torque them to keep them in place? 

Thanks

[Sebastian]

For those that have installed shifters, how do you get the rubber hood cover back far enough to get access to the tightening bolts?

Also if on carbon bars how much did you need to torque them to keep them in place? 

Thanks

I’ve only worked on the RX12 levers. With those, I pulled the hoods back from the front where you also have to access the bleed port anyway. They are pretty firm but it was possible.
Torque wise on the integrated handlebar of the VB-R099 I didn’t need to do them tighter than 4nm. That’s my usual go to for brake levers. I go up to 6nm if necessary but usually not past that. If needed, I sometimes use grippy tape like textile tape or stuff like that where the levers clamp. On my gravel bike that greatly helped stopping them from moving.

[Dmgreen13]

I’ve only worked on the RX12 levers. With those, I pulled the hoods back from the front where you also have to access the bleed port anyway. They are pretty firm but it was possible.
Torque wise on the integrated handlebar of the VB-R099 I didn’t need to do them tighter than 4nm. That’s my usual go to for brake levers. I go up to 6nm if necessary but usually not past that. If needed, I sometimes use grippy tape like textile tape or stuff like that where the levers clamp. On my gravel bike that greatly helped stopping them from moving.

Not sure I'll be able to get them back far enough. And no idea on how I'll get torque wrench on. Thanks for suggestion re: tape. I think that will help.

[strayan_rice_farmer]

Do you have access to an extended 5mm hex key?

Definitely worth the investment just for doing up shifter bolts.

[PLA]

Not sure I'll be able to get them back far enough. And no idea on how I'll get torque wrench on. Thanks for suggestion re: tape. I think that will help.

Yeah long bits are what you need.

[Dmgreen13]

Get a long bit for your torque wrench

Gotcha. Thanks

[chughes]

@Dmgreen13 get a torque bit extension bar

[Dmgreen13]

@Dmgreen13 get a torque bit extension bar

I'm just not sure how I would get it under the hoods similar to Shimano shifters.  I'll get one of these and play around with it on the weekend.

[chughes]

 Dmgreen13, push them in after pushing back the side of the hood the bolt is located(do not insert it from above, but the side)  https://www.parktool.com/assets/img/repairhelp/lever_drop_1.jpg

[Sebastian]

Received my er9 groupset in the mail today. After having built a bike with RX12, im particularly impressed with the finishing quality of the RD and FD. The surface finish is very nice. It seems a bit more polished than the RD and FD that come with the RX12 groupset.
The RD does have a serial number, so it seems it's one of the later units. Hopefully, it doesn't fail on me.
Still waiting on the frame that this is going on to. I'll post an update then.