Hi, I have been an owner of ER9 for more than a year now, but as the days are getting warmer this time of the year (for anyone living in the northern hemisphere, at least), I noticed that the brake lever action is changing very noticeably depending on the temperature. For example, I recently adjusted them to be responsive at around 5 ºC, but now that the temperatures are at ~15 ºC, the rear brake sticks significantly. I suppose this is not normal, and I am wondering whether anyone else has experienced something similar and if anyone has any ideas what the problem might be.

yea i've got the same thing too and don't know why but doesn't bother me much... I just adjust the lever reach adjuster to compensate

Where are the discounted 105 Di2's available? Anyone know if it's possible to get just the shifter+FD+RD+disc brake calipers+battery (minus crank, cassette, etc.)?

I'm curious too... Would be cool if it came without calipers as well as there are many aftermarket options now

My experience so far. I bought the eGR 1X12 in October 24 for a ICAN gravel frame. All was good till recently, when it the battery started getting drained, and on a longish ride I was stuck in 5th gear. I recharged it and did a measurement that showed it was losing about 1%/hr of charge just sitting. I have contacted the seller from AliExpress to see if there is a solution. I suspect a moisture leak and a short. Anyone have a solution?

i had a phantom drain issue as well... 80 Designer Store and LTwoo warrantied my rear derailleur and sent me a new one.

Panda Podium listing the 2025 'blue' eRX version in stock:

https://www.pandapodium.cc/product/l-twoo-2025-erx-road-electronic-hydraulic-disc-brake-groupset/

Wondering if they've updated stuff since Jesse Coyle ran them a while ago for Panda Podium to have enough confidence to put them on their site

Did you buy the one that's specifically 182g? I'm tempted, but I'd rather have a 12 speed version.

I've been running the 12s 11-34 in Blue for the past year and it's been decent. Also came in at like 230g

80 Designer Store has gotten back to me and I guess they're talking to LTwoo... i sent them a strava ride i did where the temps were around 32 degrees where the button got stuck and another ride a few days later where it was 55 degrees and the button was fine again. Waiting to hear back...

FYI, the eGR shifter is likely not immune to this issue, entirely. I've had issues with my right shifter (i.e. the only shifter I use since the eGR is 1x) being quite sticky. One of my buttons feels like it no longer has much spring back on the lever. It feels, to my finger feel, like most of the return force comes from the button itself. The lever frequently gets stuck near the button, but it's not really a problem because the button doesn't actually get stuck - it's just that the lever doesn't fully return to where my finger expects it.

Maybe the difference is that the eGR has a much more tactile and "clicky" button under the lever, so the button itself is just a little better at pushing the lever back. That's what it feels like to me.

Last year when I had the issue it was like you described where the button didn't spring back into the original position. This year since I've opened it up and stretch the spring like Trace Velo, the button returns but it still thinks it's being pushed. Something is contracting under the cold temperatures keeping it stuck and it happens at freezing temps seems like. Yea we'll see what 80DesignerStore and Ltwoo says. Responses are probably going to be a little slow seeing as it's Chinese New Year right now but I'll keep ya'll posted as I get updates...

I have zero complaints about the EGR. The better weather sealing, brake calipers, shifters and RD performance are all much more refined. I paid $300 for my EGR.

Yeah 80 Design store is super legit. At this point, they're LTwoo's international warranty and customer service front! 

are the ergonomics of the EGR and ER9 brifters the same? Like can I just get an EGR right shifter and it'l feel the same like my left ER9? hahahaha