LTWOO ER9 & ERX - Electronic groepsets

[rockerplates.de]

That's assuming that Shimano and SRAM components never have issues, which is far from the case. I wasn't really paying attention when the first electronic group sets became common, but others comment that they had their issues, even on race days. I would assume they still do, to a much lesser degree, though the rare times they still have issues the problems are probably more quickly and painlessly corrected.

Also, engineering and design missteps are still non unheard of for the big boys, as stories of Shimano's delaminating cranks caused many people huge headaches and even injuries.

But I wasn't talking about the upper end of the market. I was talking about the mid and lower tiers, where electronic geoupsets can really shine on a price/performance ratio, but Shimano and SRAM keep the tech walled off to only high performance and super high price because they have no real reason not to price it as such. Now, perhaps, they'll have a reason.

maybe true....but i have never had a hassle when quality problems occured with the big players., shimano swapped all the faulty stuff without a hassle, ....Ltwoo knows about all those issues, but keeps selling these faulty groups and generates more frustration on users and sellers side....with this behaviour, it should be a no brainer for them to help customers getting the group running...or take the stuff back?
in my base, groups did not work and no one helped or asks for videos...we are just beeing ignored..
i am doing chinese business for 25 years now....we started with ltwoo and big motivation to establish a brand against to big ones...at the end, it was just a waste of time..the mechanical groupsets work well, but with aliexpress selling cheaper than ltwoo to dealers?
It was just a waste of time.
DJI for instance had faulty stuff, too....all these items where collected and deducted from next orders..with this, we never had problems selling quantities, as we knew DJi will help....so the market had no problems with minor issues....these issues were solved within 2 weeks..and a plan was established how to proceed with the products on the market....
It seems LTWOO does not have the capacity to concentrate on these products as they are busy with domestic sales with entry groupsets....

Look at sensah...the were one of the first companies at the starting line....but they are way behind now...

[Mattpl]

Sory for post my problem again but this is new er9 from Aliexpress, ltwoo and store from few days are off ;/ Total silence od ther side ;/

problem with er9 one of you have simillar problem (i have PM him).
straight road without any holes, and system go down. This happend with some combination of front from 1 to second and on rear and back. After plug charger system turn on (new battery). happend when i tried to shift both derailleurs at the same time??
Front from big to small and back vice versa.
Yesterday i have test it without gear protection in app (off) and while on FD move from 1 to 2 then all OFF. When gear protection is on i can change at FD gears few times and when chanigng in not smooth system of, this looks like some of protection?? In my opinion FD is quite good adjust at 2x11

53-36T and 11-25T

Thanks for any help

[SirBikealot]

Sory for post my problem again but this is new er9 from Aliexpress, ltwoo and store from few days are off ;/ Total silence od ther side ;/

problem with er9 one of you have simillar problem (i have PM him).
straight road without any holes, and system go down. This happend with some combination of front from 1 to second and on rear and back. After plug charger system turn on (new battery). happend when i tried to shift both derailleurs at the same time??
Front from big to small and back vice versa.
Yesterday i have test it without gear protection in app (off) and while on FD move from 1 to 2 then all OFF. When gear protection is on i can change at FD gears few times and when chanigng in not smooth system of, this looks like some of protection?? In my opinion FD is quite good adjust at 2x11

53-36T and 11-25T

Thanks for any help

Thats me and nope no solution yet. Just for saftey reasons that i by mistake shift both exactly at the same time i put my charging cable and a usb-a to ubs-c adapter in my saddlebag, so i can connect the rd to my phone as a charging device and get it working again.
Maybe some pseudo "calibration" needs to be done, because mine thought it was in the smales cog altough it was in the middle of the cassette

[Mattpl]

 

Thats me and nope no solution yet. Just for saftey reasons that i by mistake shift both exactly at the same time i put my charging cable and a usb-a to ubs-c adapter in my saddlebag, so i can connect the rd to my phone as a charging device and get it working again.
Maybe some pseudo "calibration" needs to be done, because mine thought it was in the smales cog altough it was in the middle of the cassette

you run 2x11 or 12? Yestrerday I was testing and with gear protection off my system go down after only one change from 1 to 2 at front, with gear protection on this situation happend less often. I think this is connected with some adjusment of FD, when shift on front is smooth then is ok, when not system is blocking.

I'm in contact with Ltwoo and Store from aliexpress ,but damn, they are silent ;/ Support even not exist

Could somone whith 53-36 on front take photo of FD when is at second gear ( now mine is set with sticker 3mm up the tooth) and screen with calibration for FD on 1 and 2 gear (i know that this depends which frame, hanger etc.)

//Edit: I have contact with a few people with Ltwoo and I have tommorow video call or chat with someone from tech support, will see

[SirBikealot]

you run 2x11 or 12? Yestrerday I was testing and with gear protection off my system go down after only one change from 1 to 2 at front, with gear protection on this situation happend less often. I think this is connected with some adjusment of FD, when shift on front is smooth then is ok, when not system is blocking.

I'm in contact with Ltwoo and Store from aliexpress ,but damn, they are silent ;/ Support even not exist

Could somone whith 53-36 on front take photo of FD when is at second gear ( now mine is set with sticker 3mm up the tooth) and screen with calibration for FD on 1 and 2 gear (i know that this depends which frame, hanger etc.)

//Edit: I have contact with a few people with Ltwoo and I have tommorow video call or chat with someone from tech support, will see

it's 2x11 with 50-34 and 11-32
really looking forward to the outcome of your video call

[Mattpl]

also mine is 2x11 53-36 and 11-25. I will give feedback if something tell new this support .

Edit:///
Today chat with store and fianlly nothing new, same info  like
"When changing gears with shift, the crank needs to be cranked up, otherwise the RD will flash a red light and not move."
It's very hard to talk with them ;/ now again I'm waiting for any response ;/
Today I will also test with another battery, maybe there is some drops of Voltage ?? FD need more power to change gear i think

[Serge_K]

And the disaster continues. 3rd dead er9 RD. again, randomly and for no reason. Was riding with my friend, who really hasn't used his new bike much, less than ten rides for sure. Dry, 20 Celsius, smooth asphalt, largely flat. 35km into the ride, his RD dies like the other 2. So there's my er9 on which I've put almost 4k km that's working fine (sometimes it charges weird, but at least it's working), and the fifth one isn't being used because the front wheel on that bike broke during a crash and we're still waiting for a replacement.
At which point can I preemptively ask for extra spare RDs? I'm happy to beta test, but we can't be 6 weeks without derailleurs every time one kills itself.

[jonathanf2]

And the disaster continues. 3rd dead er9 RD. again, randomly and for no reason. Was riding with my friend, who really hasn't used his new bike much, less than ten rides for sure. Dry, 20 Celsius, smooth asphalt, largely flat. 35km into the ride, his RD dies like the other 2. So there's my er9 on which I've put almost 4k km that's working fine (sometimes it charges weird, but at least it's working), and the fifth one isn't being used because the front wheel on that bike broke during a crash and we're still waiting for a replacement.
At which point can I preemptively ask for extra spare RDs? I'm happy to beta test, but we can't be 6 weeks without derailleurs every time one kills itself.

It probably wasn’t a good idea to buy 5 ER9 groupset especially since it seems LTwoo hasn’t ironed out their issues. My ER9 is still working fine, but I’m always checking to see if it’s functioning! I’m already eyeballing some cheap mechanical 105 12 speed shifters or just drop back down to 11 speed with spare Ultegra shifters if my groupset does die!

BTW - LTwoo updated the app, but I don’t see any new features. It looks like they updated it to recognize the upcoming blue edition ERX/9.

[Sebastian]

Yeah. I wonder how high the failure rate with first gen er9 actually is. I guess we’ll never know for sure. Mine’s still fine as well. Did a 2h rainy ride today. Cleaned the bike with a pressure washer after, intentionally blasting on the derailleurs. Works fine.

But I got to admit: If it fails, I’m probably gonna bite the bullet and get 105Di2 or Sram Rival AXS instead.

[Serge_K]

It probably wasn’t a good idea to buy 5 ER9 groupset especially since it seems LTwoo hasn’t ironed out their issues.

I agree very much, but we had 4 bikes to build up day 1 and I bought a spare in case we had one dead on arrival or breaking right at the outset.
At the time of purchase, it was pretty much the only electronic option available, and I definitely have mixed feelings with sensah mechanical, my experience has been very mixed. And routing 4 hoses in the bike instead of 2?... L-TWOO mechanical I didn't like the thumb shift thing. And Shimano/ SRAM were way out of budget.
So we're now paying the price of beta testing.

[Avalius]

With reading all these comments that's the reason I'm keeping my gravel mechanical. Atleast I always have a backup bike. But damn this is bad

[Mattpl]

it's 2x11 with 50-34 and 11-32
really looking forward to the outcome of your video call

I have Fix my problem take voltage meter and check V of batteries 14500 should have from 2.2v?? To max 4.4 (something like that), mine have 5.2-5.5V, now long 5h ride with new batteries ( this new have 4.2v) and 0 problem, 0!

[jonathanf2]

My ER9 is still going strong. When it works, it's f**king great! Though I'm not ignoring the problems. Hence why I don't ride my ER9 bike in the rain & don't wash it with a hose, I rotate my bikes to minimize wear-n-tear and I don't do things like shifting both the left/right shifters at the same time.

Also I'm theorizing that some aftermarket batteries might be an issue as well. That's the one variable that differs between all the working/non-working units. This is probably why Shimano uses their own proprietary unit and SRAM insist on only using their OEM batteries. I could imagine a sh**ty battery could potentially toast the ER9/X RD electronics.

Even with all the issues and the non-existent LTwoo support, I'd probably buy another ER9 groupset when it's on sale. The performance-price-risk factor is still worth it for me.

[rockerplates.de]

My ER9 is still going strong. When it works, it's f**king great! Though I'm not ignoring the problems. Hence why I don't ride my ER9 bike in the rain & don't wash it with a hose, I rotate my bikes to minimize wear-n-tear and I don't do things like shifting both the left/right shifters at the same time.

Also I'm theorizing that some aftermarket batteries might be an issue as well. That's the one variable that differs between all the working/non-working units. This is probably why Shimano uses their own proprietary unit and SRAM insist on only using their OEM batteries. I could imagine a sh**ty battery could potentially toast the ER9/X RD electronics.

Even with all the issues and the non-existent LTwoo support, I'd probably buy another ER9 groupset when it's on sale. The performance-price-risk factor is still worth it for me.

where are you located?

[jonathanf2]

where are you located?

Southern California. When it does get wet here, I usually just take my mechanical GRX gravel bike.