LTWOO eGR

[Ulkem]

Anyone know what's the max chainring I can fit on this group set? Thinking of a 1x system with at least a 50-52t chainring.

Since there is no front derailleur I don't think there is a limit?

[jonathanf2]

Anyone know what's the max chainring I can fit on this group set? Thinking of a 1x system with at least a 50-52t chainring.

I know Wheeltop is more accommodating for 1x road with different size cages, but for outright speed and shifting under pedal load, the EGR is superior in performance (I have both). I'm guessing the EGR will be fine with a bigger front chainring in 1x configuration as long as your chain length is adequate for whichever cassette you plan to pair with.

[rsw42]

Anyone know what's the max chainring I can fit on this group set? Thinking of a 1x system with at least a 50-52t chainring.

The limiting will probably be the frame... if you want to stay 1x the chainring sits farther inboard then it would do in a 2x setup (since there is no inner ring) which is better for chainline... the chainstays usually the point where chainrings would hit when they become too big... so this is where I'd see the limit - not with the RD, that shouldn't care how bit the ring up front is...

[svanimpe]

Is it possible to get a summary of this groupset so far, given that this thread is now over two years old?

- What are the long-term reviews so far?
- Does the groupset still have known issues?
- Has anyone tried the "2026 version" being offered on AliExpress?
- Are there any known updates in the pipeline? I'm really hoping for a version that charges over USB-C.

I am considering it for a 1x12 endurance bike (40 x 10-46).

[amacal1]

Is it possible to get a summary of this groupset so far, given that this thread is now over two years old?

- What are the long-term reviews so far?
- Does the groupset still have known issues?
- Has anyone tried the "2026 version" being offered on AliExpress?
- Are there any known updates in the pipeline? I'm really hoping for a version that charges over USB-C.

I am considering it for a 1x12 endurance bike (40 x 10-46).

For all of these groupsets, I encouraged people to make new threads for the new versions, but people just keep coming back to the same old thread. The new 2026 versions are entirely different animals compared to the ones released 2 years ago, so I can understand your frustration.

I have an original release eGR. It's been fantastic. I only have about 1000mi on it over the last 2 years, but it does have 1000mi and has lasted 2 years coming up in February. Shifting suffered a little after a big crash where I think I bent something and didn't like going up to 50t 12x drive, but it still shifts pretty well (all things considered). I literally have never changed the brifter battery since I put a Duracell 2032 cell in it when I first installed it, lol. One day it's going to die on me, and I'll whip out my phone and switch to my left brifter.

I think the new 2026 eGR would SUCK, if only because it has no way to charge it other than removing the seatpost or unplugging the rear derailleur. That was a massive downgrade in feature, in my opinion. Maybe they had some water ingress issues in the eR9/eRX lineup that made them eliminate the magnetic charger, I don't know. But my eGR hasn't seemed to mind water (though I try not to douse it). In my opinion, constantly plugging/un-plugging/putting-stress-on the rear power port is going to cause WAY more issues. But, what do I know?

[svanimpe]

How long does the battery last for you?

From what I hear, Shimano Di2 seatpost batteries usually last around a month. If L-TWOO was able to achieve something similar, unplugging the cable from the rear derailleur once a month doesn't seem so bad.

[jonathanf2]

Is it possible to get a summary of this groupset so far, given that this thread is now over two years old?

I am considering it for a 1x12 endurance bike (40 x 10-46).

- What are the long-term reviews so far?

I've been using my v1 eGR for over a year, it' still running strong. It can clear a 50t cassette with no problem.

- Does the groupset still have known issues?

The unadvertised v2 eGR removed magnetic charging. It now requires unplugging the battery cable and charging it directly to a cable plug that can connect to a USB charger. Not ideal since v1 just needed a rubber gasket cover. My batteries lasted quite long with no charging while out in the desert.

- Has anyone tried the "2026 version" being offered on AliExpress?

It has flat mount brake calipers, but I'm guessing everything else is the same.

- Are there any known updates in the pipeline? I'm really hoping for a version that charges over USB-C.

LTwoo eTT which is fully wireless and drop shifter compatible was supposed to be released already, but hasn't come out. My guess is there might be patent issues still being ironed out.

In my opinion, eGR it's one of the best 1x groupsets available for the price. I also have Wheeltop GeX and I prefer eGR due to superior brake lever ergonomics. The brake levers are so far out with GeX, it makes it hard to descend down bumpy trails at full speed. LTwoo also shifts faster and can do so under pedal load.

[00Garza]

My old version eGR has been great. Replaced the battery that it came with for ones I found good recommendations on here, and its lasted forever. Absolutely minimal battery drain even when its sat for a few weeks.

I can't imagine having to pull out the seatpost to charge. An expensive solution would be pairing the shifters to the (allegedly) upcoming mtb derailleur to be fully wireless.

[jonathanf2]

My old version eGR has been great. Replaced the battery that it came with for ones I found good recommendations on here, and its lasted forever. Absolutely minimal battery drain even when its sat for a few weeks.

I can't imagine having to pull out the seatpost to charge. An expensive solution would be pairing the shifters to the (allegedly) upcoming mtb derailleur to be fully wireless.

You don't have to pull out the seat post, you just have to unplug the RD battery cable and connect it to a charging cable with a USB attachment. The magnetic charging is still ideal. LTwoo seemed lazy and just removed magnetic charging from all their current electronic groupsets. All they needed was a rubber gasket, but there's a good chance Shimano or SRAM have elaborate patents with rubber gasket covers.

[svanimpe]

Does the eGR support 10-46t cassettes? The specs mention a smallest cog of 11t.

[jonathanf2]

Does the eGR support 10-46t cassettes? The specs mention a smallest cog of 11t.

Yeah I'm running 9-46t and 9-50t with no problem. You just have to adjust the high limit screw.

[svanimpe]

Is anyone willing to measure the length of the hoods (from the end to the point where they start to turn upwards)? I'd like to compare them to Wheeltop GeX, SRAM Rival, and mechanical GRX.

I've heard Wheeltop is quite small, and the new Rival is quite long, which can make a big difference for a short-reach rider like myself, who can hardly find a fitting frame anymore.

[jonathanf2]

Is anyone willing to measure the length of the hoods (from the end to the point where they start to turn upwards)? I'd like to compare them to Wheeltop GeX, SRAM Rival, and mechanical GRX.

I've heard Wheeltop is quite small, and the new Rival is quite long, which can make a big difference for a short-reach rider like myself, who can hardly find a fitting frame anymore.

I have both Wheeltop GeX and LTwoo eGR. eGR hoods are WAY better ergonomically with taller hoods and superior brake lever reach adjustment. With the eGR, I add an extra piece of bar tape under the palm area for comfort. I can adequately descend dirt trails with no problems. With GeX shifters, I'm having to feather the brakes while descending, because the lever reach is too long. Having used both GeX and EDS TX, I can't even fully recommend either system due to ergonomic shortcomings.

[jonathanf2]

Also quick measurements:

LTwoo eGR:
- from the top of the hoods to the of the palm area, it's about 11cm
- from the top of the hoods to the tip of the lever, it's about 17cm
- from the tips of the lever to my bars it's also about 11cm

Wheeltop GeX:
- from the top of the hoods to the of the palm area, it's about 9cm
- from the top of the hoods to the tip of the lever, it's about 15cm
- from the tips of the lever to my bars it's also about 12cm

[00Garza]

Yeah I'm running 9-46t and 9-50t with no problem. You just have to adjust the high limit screw.

hmm...now I'm curious if I could fit a 12s 11-51 cassette. I'd like to run the same cassette on my gravel bike as my mtb just for uniformity sake.