LTWOO ER9 & ERX - Electronic groepsets

[Avalius]

Anyone ever had ghost shifts with this group? Group is still going strong here but sometimes very rare it shifts without me touching a shifter. It's so rare that I don't even bother it

[Sebastian]

I'd try resetting the RD multiple times and see if that triggers the latest firmware update. I'd also try disconnecting the battery cables overnight and then check the charge status. Either you need a new RD or a new battery holder.

I reset the RD three times. I charged it back up. Charging took noticeably longer after that like it used to when the RD was still working normally. But it didn’t help. Battery level dropped to 73% in 12h. Also it didn’t prompt any firmware update. Neither for the RD not for the FD. I got another set of batteries I’m gonna try. Meanwhile I confirmed that my original batteries are working fine. They charge up and my battery tester gives them the thumbs up. They don’t reach 800mAh though. But neither do the brand new batteries I just unboxed. According to spec they should have 800mAh. But my charger gives a reading of 596mAh when they’re full.

Anyway. I’ll do a third run with the third set of batteries. But I don’t expect a different outcome. Meanwhile still no word from 80 Designer Store. I’ll send them my testing results when I’m done.

[Mattpl]

Hi, have somebody EGR shiffters and could test if they work with RD from er9/erx?

[SillyMochi]

What is currently considered a "good price" for the er9 set?

[jonathanf2]

What is currently considered a "good price" for the er9 set?

The best price I bought mine for was from the LTwoo Choice store for about $350 USD with local tax. Luckily that ER9 unit has been solid. Though I'd buy from the 80 Design Store and pay a little more (should be sub $400 USD) and get follow-up customer service. You have no recourse for warranty service on Choice items once 90 days is up. I wouldn't buy any Choice items that might have issues after the return period.

[SillyMochi]

Thanks. With the current discount code I could get it for 399 USD + local tax from 80 designer store. So in line with what you expect. Wondering if singles day sale might come out even better.

[jonathanf2]

Thanks. With the current discount code I could get it for 399 USD + local tax from 80 designer store. So in line with what you expect. Wondering if singles day sale might come out even better.

Sellers might just wait for the 11.11 sale to drop prices even more. I would just leave things in the cart and wait.

[SillyMochi]

Yeah that's what I figured. Otherwise I snag it on the first of December sale.

[Sebastian]

80 Designer Store replied to me about my battery draining issues. They will send a new RD to me. Praise to them for respecting their warranty.

Still, I’m 99% sure that I’m going to get a used Sram Rival AXS group for cheap and replace my er9. So if anyone within Europe is looking to get one for cheap, send me a pm.

[Phaxe]

I thought I'd update those considering the eGR. I bought good quality batteries and have only charged them once. I've been on about 15 rides so far (ranging from 20km - 80km) and the batteries are currently sitting at about 72%.

I've had it on my bike for two months if that's of any worth?

[Sebastian]

I thought I'd update those considering the eGR. I bought good quality batteries and have only charged them once. I've been on about 15 rides so far (ranging from 20km - 80km) and the batteries are currently sitting at about 72%.

I've had it on my bike for two months if that's of any worth?

Well, it worked for most of us when it was still brand new. Fingers crossed that yours will keep working.
While we're on the topic of eGR: We still don't know whether LTWOO's electronic groups are cross compatible. Does your battery holder have two cable ports and one is left unused? Is it the same 3 pin plug? Because 80 Designer Store promotes the egR with having a "2024 new" battery holder. Yet on the photos it looks exactly the same.

Also, I wonder if the left shifter buttons can be used for something else at some point. For instance to turn pages on Wahoo or Garmin computers or control a bluetooth dropper.
It doesn't really make sense that LTWOO went through the trouble to come up with dedicated gravel brifters and sell these with buttons on both levers when they don't even make a 2X gravel groupset. They'd be selling dead weight and lose money in the process, right?
Otherwise one might as well strip the left shifter.

[amacal1]

I have an eGR that I bought in March or April of this year. The battery holder weirdly only had one port. The second port was blanked off. Otherwise it looked the same as the eR9 one (from photos I've seen). I still can't figure out why they would make it a unique item.

[amacal1]

Has anyone removed the upper pulley wheel of an eGR (or maybe eR9, not sure how similar they are)? I went to remove mine earlier and discovered that it's not so easy to remove. It seems like there's no nut or maybe just an e-clip or something holding the hardware on. I couldn't immediately work out how to remove it and decided to leave it alone since that wasn't my primary goal while I was tinkering.

[jonathanf2]

Has anyone removed the upper pulley wheel of an eGR (or maybe eR9, not sure how similar they are)? I went to remove mine earlier and discovered that it's not so easy to remove. It seems like there's no nut or maybe just an e-clip or something holding the hardware on. I couldn't immediately work out how to remove it and decided to leave it alone since that wasn't my primary goal while I was tinkering.

The ER9 just uses standard cage screws to hold the pulley wheels in-place. They're easy to remove.

[Mattpl]

Hi, have someone test if RD ER9 will work with cassete 11-36 or higher? I read thaht 11-34 is max (ltwoo manual)