LTWOO eGR

[pavlo.k]

Just received my eGR and can't turn it on. I installed fully charged 14500 batteries into the battery holder and connected the cable but there's no reaction from the rear derailleur. The light does not flash, no reaction when I press the button, not discovered by the app. Already wrote about it to the seller but is there anything I can try myself while waiting for the response?

[pavlo.k]

ok. figured it out. Turns out you need to connect the charger first, otherwise the battery is not going to work even if it's fully charged

[Rapac]

Is it possible to put bigger capacity 14500 inside ? I saw someone mentioning Vapcell F12 in the thread, wich are 1250mAh instead of the 800mAh original.
Is it blocked by the system ?


Thanks

[amacal1]

Is it possible to put bigger capacity 14500 inside ? I saw someone mentioning Vapcell F12 in the thread, wich are 1250mAh instead of the 800mAh original.
Is it blocked by the system ?
Thanks

The battery capacity is the battery capacity. If it's greater than 800mAh, then it will last longer. There is nothing I know of that tracks the battery usage and shuts it off after a certain usage threshold has been exceeded.

You should be mindful, though, that the 'stated' capacity of some cells may be... exaggerated.

[Serge_K]

ok. figured it out. Turns out you need to connect the charger first, otherwise the battery is not going to work even if it's fully charged

Indeed. That's in every YouTube video about the installation, and in the paper manual, and the PDF manual, from memory at least.

On batteries, I originally bought trash batteries (bought what I could find) then bought expensive 2A batteries, they've been much more dependable. Given the failure rate on these groups, I would recommend everyone to use quality batteries (no idea if it prevents failures, but that's a sound insurance policy). 1A vs 2A probably makes no difference, and for sure it makes no sense to put even higher discharge batteries, so aim instead for batteries with a higher capacity as it will extend battery life. The batteries I had installed at first sometimes made the RD shift several gears with one click. Problem completely disappeared with the new batteries, and they last much longer. I capacity tested all of them, the cheap ones tested at 300-400 and the new ones tested at the stated capacity (800 or 900 from memory).

[highwind]

Perhaps anybody actually owning this groupset can answer the following question:

At the end of the Trace Velo review of the prototype eGR, Luke mentions, that the default shifting configuration is on the two shifting levers on the right hand side (one for up, one for down - classic shimano-style) but it also can be changed within the app to be on the left hand side aswell.
Is it also possibly to configure it as SRAM-eTap-style shifting, so lever on the right hand side does upshifting, lever on the left hand side does downshifting (or the other way round)?

[Rapac]

Thanks for the answers. That what I thought like for every normal electronic system. But sometimes, brands blocks the use of other capacity batteries (phones for exemple). Good to know, I'll go for a big capacity Vapcell then.

Bought my groupset by designer 80, they sent photos of packing before shipping. Nice thing to do.

[gloscherrybomb]

Perhaps anybody actually owning this groupset can answer the following question:

At the end of the Trace Velo review of the prototype eGR, Luke mentions, that the default shifting configuration is on the two shifting levers on the right hand side (one for up, one for down - classic shimano-style) but it also can be changed within the app to be on the left hand side aswell.
Is it also possibly to configure it as SRAM-eTap-style shifting, so lever on the right hand side does upshifting, lever on the left hand side does downshifting (or the other way round)?

No. Has been requested many times. Reach out to Ltwoo and add your name to the list

[trcycling]

The battery capacity is the battery capacity. If it's greater than 800mAh, then it will last longer. There is nothing I know of that tracks the battery usage and shuts it off after a certain usage threshold has been exceeded.

You should be mindful, though, that the 'stated' capacity of some cells may be... exaggerated.

Worth noting that I believe the variability in batteries is what makes the 'gauge' in the app rather inconsistent. I assume it is calibrated for whatever LTWOO ships. Other batteries will have different performance curves (even better ones are not necessarily better for this purpose) and thus show a different % in the app.  A bit maddening the inconsistency of burndown I've seen. But if you charge regularly before you run out (still weeks), it shouldn't cause actual issue

(see separate post coming)

[trcycling]

Perhaps anybody actually owning this groupset can answer the following question:

At the end of the Trace Velo review of the prototype eGR, Luke mentions, that the default shifting configuration is on the two shifting levers on the right hand side (one for up, one for down - classic shimano-style) but it also can be changed within the app to be on the left hand side aswell.
Is it also possibly to configure it as SRAM-eTap-style shifting, so lever on the right hand side does upshifting, lever on the left hand side does downshifting (or the other way round)?

Very sadly, no. You can swap sides as you note. But as yet, it cannot be reconfigured. I've exchanged emails with LTWOO on this twice now and the first time they suggested that configuration options are in the queue. But it's been a half year with no updates so...

The second time (when I made specific suggestions of how it would be nice to reconfigure), I got a response that 'SRAM style' might run into patent issues.  I replied that they could just let us pick what each button does. Then they aren't shipping with a conflicting pattern.  . No response to that suggestion

So at the moment, the other switches are just backups or potentially future-proofing for a 2x configuration. 

If you'd like to suggest something, send a note to sales@lwtoo.com. They are reasonably responsive in my experience. (don't tell them I sent you)

[trcycling]

Thanks for the answers. That what I thought like for every normal electronic system. But sometimes, brands blocks the use of other capacity batteries (phones for exemple). Good to know, I'll go for a big capacity Vapcell then.

Bought my groupset by designer 80, they sent photos of packing before shipping. Nice thing to do.

Yeah, that kind of lockout depends on circuitry in the pack. In this case, they are providing the pack that you use (the tube with circuit board) and you add the simple 'dumb' battery inside. They don't have direct access to information about the battery itself (they could infer it perhaps)

[rockerplates.de]

Yeah, that kind of lockout depends on circuitry in the pack. In this case, they are providing the pack that you use (the tube with circuit board) and you add the simple 'dumb' battery inside. They don't have direct access to information about the battery itself (they could infer it perhaps)

Well, we have adressed that problem to ltwoo....they leave it to the customer to buy the batteries and they are not able to control the quality of the battery at the end..

Selling a product with batteries opens a huge can of worms..it is hard to ship parcels with batteries inside, well it is not hard, but its more expensive...you would also have to certify this battery pack...
The pcb they are using does not have any (working) protection, we have had a burned tray without any explanable reason...
it is very easy to program a warning if the battery is low quality and or begins to die...when the load is applied and the voltage drops below a certain level, you could trigger a warning...
But they are chinese...so a product quality of 90 % is good enough for them....

[highwind]

@gloscherrybomb & @trcycling

Thanks for you answers.
I am currently not in need of a new groupset, just checking options as my next upgrade will prolly be electronic with SRAMs eTap-shiftlogic.

Hopefully Sensah will be offering something the like with their new electronic groupset which I heard is in the making... they have been more-SRAM-than-Shimano-like in the past anyways. 
If they just "copy" the APEX/Rival AXS but with hydraulic oil brakes (instead of DOT) and a derailleur battery pack which uses some standard batteries (like 18650) instead of the proprietary stuff, I think that would be an absolute winner of a groupset.

[AndrewSpearns]

I completed a 115km back country gravel event in Corner Brook, Newfoundland last week which was on terrain everywhere from tame to knarly, with some rain, mud, puddles, water crossings...

My RD didn't suffer from water ingress, but at the end of the event my watts were not making sense. When I got home, found that the two jockey wheels were completely locked up. They use 626Z bearings, which have metal shields and are not sealed like their 626RS counterparts.

I've sourced some bearings at the local Wajax but also have a request sent to LTWOO to warranty the jockey wheels. I've got maybe 1000km on this group since May.

[trcycling]

I completed a 115km back country gravel event in Corner Brook, Newfoundland last week which was on terrain everywhere from tame to knarly, with some rain, mud, puddles, water crossings...

My RD didn't suffer from water ingress, but at the end of the event my watts were not making sense. When I got home, found that the two jockey wheels were completely locked up. They use 626Z bearings, which have metal shields and are not sealed like their 626RS counterparts.

I've sourced some bearings at the local Wajax but also have a request sent to LTWOO to warranty the jockey wheels. I've got maybe 1000km on this group since May.

By chance, did you take pictures?