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Re: LTWOO eGR Could not resist the eGR offer during the current sales with a 40$ coupon...
Let's see how this works out...

BR Chris
March 22, 2024, 08:53:13 AM 		1
Re: LTWOO eGR Hello, I just joined this forum to jump in on the discussion of the eGR. I ordered one and just installed it last night. Well, almost. Ran into an issue bleeding the brakes because I didn't have an appropriate nipple to plug my syringe into the caliper port. So, waiting on a new bleed kit to come in tomorrow with a selection of various sized nipples. Also, need to finalize how I'm routing the power cable, as of now it's just taped on the chain stay.

Either way, I'm disappointed to hear about the sudden influx of issues. I hope I got a newer one.

My hopes are high as my initial impression is quite good. Shifting is smooth and fast once I got it dialed in. I'm coming from a Microshift Advent X 1x10 setup where I was using a Microshift Sword 11-38 cassette on a "road" type wheelset and the stock boat anchor cassette on a gravel-esque wheelset.
April 26, 2024, 10:45:06 PM 		1
Re: LTWOO ER9 & ERX - Electronic groepsets Thank you for the 51 pages of comments to the eR9 and eRX, very useful and interesting information!

During the recent sale I could not resist to get an eR9 without batteries that came in delivered around 300US$.
A great price if the thing works...

For context, I upgraded my mostly indoor Zwift bike with the eR9 since the shifting performance of the GR9 never was great and the thumb shifter is not my cup of tea after trying it for several months. I think the poor shifting performance may have been due to the tight bends of the shifter cable due to the fully integrated handlebar. Going to wireless electric shifting did the trick for me...

I had the GR9 hydraulic levers paired with the Zrace XG calipers, design, weight and color choice were attractive at the time.
My experience with the calipers was less than stelar... the back brake did never work, even after several bleeds. The brake feeling was always soft and not very assuring on steep downhill rides. Installed the heavier L-Twoo calipers and breaking feel and performance is now good.

I am running the eR9 in a 1x11 speed configuration, due to the existing chain and cassette.
I really like the future proof option to upgrade to 1x12 or 2x12 if I want to experiment.

Reading about the water ingress on the deraileur, I decided to use a heat shrink tube to slide over the port of the rear derailleur and then shrieked it to seal the cable in place. I expect this to solve the issue for the time being.

Getting the L-Two app to work is a bit of an issue since the default language is Chinese... after some online search I figured out how to switch the language. Other than that the App is easy to use and the option to fine tune each gear to the tolerances of your cassette is a great feature.
I currently run 46t x 11-36t for my indoor setup, no problem with the B screw to get 36t working even without a deraileur extender.

Time will tell how good the system works and if the batteries discharge quickly. Since use the bike mostly indoors it should at least not cause any issues with water ingress.




BR
Chris
May 11, 2024, 09:46:45 AM 		1
Re: LTWOO ER9 & ERX - Electronic groepsets
Quote from: ChrisB on May 11, 2024, 09:46:45 AM
I had the GR9 hydraulic levers paired with the Zrace XG calipers, design, weight and color choice were attractive at the time.
My experience with the calipers was less than stelar... the back brake did never work, even after several bleeds. The brake feeling was always soft and not very assuring on steep downhill rides. Installed the heavier L-Twoo calipers and breaking feel and performance is now good.

This is funny, I just did the opposite. My LTwoo calipers worked fine, but the weight gain going with the ER9 was bugging me. I had ZRace XG calipers I bought on a whim awhile back and decided to install them. In the process I also opted to switch to 140mm rear rotors and cut a few extra grams. I didn't even do a proper bleed since I did a direct swap with the calipers. Brake feel is surprisingly good with the ER9 levers. The weight savings is quite significant because I cut about 100g from the calipers.

BTW - do you have a photo of your heat shrink cables? I'm using a coat of rubber cement + dielectric grease on my cables, but now I'm realizing it's a bit of a dirt magnet. I'd prefer a much cleaner application if possible!
May 12, 2024, 01:59:31 PM 		1
Re: LTWOO eGR Thanks a lot for reporting your experiences!
May 12, 2024, 03:21:34 PM 		1
Re: LTWOO eGR Good updates on eGR. Any water tests or washes as of yet for you guys running eGR?
May 13, 2024, 10:22:43 AM 		1
Re: LTWOO eGR
Quote from: trcycling on May 13, 2024, 01:24:53 AM

I'm wondering if you got the bleed kit sorted out and have any thoughts to share. I've got eGR set on the way. I'm used to doing deeper install research before installing but there is so little on it. So any tips or cautions are appreciated. (or pointers to a more appropriate thread)

Very easy to install imo. The usual pain to run bike lines if you’re internal, but then just a regular bleed procedure as if they’re shimano levers. Plug it in and begin to fine tune the shifting in the app. EZ. I didn’t have to do anything weird in my install to make anything work. Besides the 1st batteries not working.
May 13, 2024, 10:34:15 AM 		1
Re: LTWOO eGR
Quote from: trcycling on May 13, 2024, 01:24:53 AM

I'm wondering if you got the bleed kit sorted out and have any thoughts to share. I've got eGR set on the way. I'm used to doing deeper install research before installing but there is so little on it. So any tips or cautions are appreciated. (or pointers to a more appropriate thread)

Actually... I did have some minor issues. Mostly because I ordered the "no box / no battery" package, so I did not get Ltwoo's bleed kit. I ordered some supposedly Shimano compatible kit from Amazon, but it came with only one type of fitting and tube connector. Unfortunately, there was no way to get my syringe onto the Ltwoo caliper port. I had to order a different kit from Amazon that came with a variety of different fittings and doo-dads and, fortunately, one of them fit the port. If I could go back in time, I'd much rather have ordered the Ltwoo kit because it was cheap and would have been a little less headache. But, it was a relatively minor inconvenience. Plus, the delay let me re-evaluate how I had run everything, and I was able to take a little time to shorten one of my hoses a little for *perfect* fit and finish.

Also, while installing, I was completely convinced that they had left out a screw that I needed for my size caliper installation. I checked very thoroughly and was absolutely sure it was missing. I came up with a work-around solution and was about to write them an email so they could send me a replacement or at least give me the specifications so I could source locally, and the only reason I didn't send the email was because I resolved to do it once I finished for the night. Anyway... I found the missing screw PERFECTLY nestled and hidden inside some spacer or something. I mean, it was flawlessly hidden. So, I guess they did a great job packaging the hardware. If you order the "no box / no battery" package it surely looks like a mess of stuff just randomly shoved in a box with a bunch of packing foam, but they did have some order in the madness.

Quote from: 00Garza on May 13, 2024, 10:22:43 AM
Good updates on eGR. Any water tests or washes as of yet for you guys running eGR?

I kinda *need* mine to work this upcoming weekend as I'm riding it in a big century ride event I'm going to. So, I've been baby-ing it and being very easy with it. I'm surely going to be a lot more adventurous and abusive after that.
May 13, 2024, 10:57:35 AM 		1
Re: LTWOO eGR The attachment contains the reply I received from Ltwoo's official support regarding the waterproof performance of the EGR. The main point stated in the response is that the waterproofing of the EGR has been improved compared to earlier versions (at least according to their official statement).

Quote from: trcycling on May 16, 2024, 11:57:04 AM
... Do we have any idea where the ingress is? ...

Unfortunately, I don't have the physical EGR item with me, and my friends are also unaware of the specific areas where potential gaps may exist. All repairs are handled by Ltwoo officially.

However, I have a suggestion that may not be fully matured. Perhaps applying some waterproof spray meant for outdoor clothing on the outer layer of the rear derailleur could be helpful?
May 16, 2024, 12:06:59 PM 		1
Re: LTWOO eGR
Quote from: trcycling on May 17, 2024, 02:54:27 AM
Yes they do include a generous collection of hardware. Unfortunately a) I asked and was told they were post mount and b) the calipers are using an 70mm spacing that looks like post mount but uses M5 bolts like flat mount. Something I read tonight suggested that this is one flat mount standard (the ones on my road bike are much narrower at 30something mm) The included adapters are also 70mm rather than the post mount standard 74mm (seriously, who in the industry decided to invent a new flat standard 4mm different and using one size different bolts? ) I thought about drilling it out but there isn’t enough material in the right places. I also do not find anyone doing flat to post adapters for the 70mm flat variant.

And while you’re right about drop bar bikes being more likely to use flat mount, this is a gravel group set where post mount is not rare.

So, now I’m wondering what calipers might be compatible with the LTWOO levers. I know that early on they were bundling with other makers calipers, so I’m guessing the piston ratios are probably common. Maybe Shimano compatible since they went with mineral oil. If so, that would be great since apparently pretty much all Shimano calipers are compatible including across road and mountain groups.

Not sure about Ltwoo's electronic groupsets but I am running a GRX400 front caliper with my Ltwoo GRT groupset since the mounting brackets for their caliper were not compatible with my fork.
May 17, 2024, 05:20:43 AM 		1