Firmware Update on eGR?

I just went to check on my battery charge and the app is telling me that I have to do a firmware update. (not how to do it LTWOO).

I'm currently showing 1.0.2. No idea what version is coming. Has anyone seen newer than 1.0.2 and knows what's in it and if it is safe?

Regarding the new firmware update on GeX, it's a big step up. I wrote up my findings here https://trbike.blogspot.com/2026/08/wheeltop-gex-firmware-and-app-update.html

Quote from: jonathanf2 on August 15, 2025, 11:10:32 AM
What's up with the EGR? Prices are way higher than the current V3 ER9/ERX on AliEx. Also the price for the ERX isn't even worth it on Ali. Better off buying from Panda Podium for $649 USD and get legit customer support. At least for US customers, they're not charging sales tax (yet).

I read a theory elsewhere that both LTWOO and Wheeltop may be de-emphasizing out-of-China sales right now (for 'reasons') and that in-China gravel sales aren't that big (as a share). The combination leaves them less aggressive about market penetration through the overseas sellers like Aliexpress for the electronic and eGR in particular.

Related point is that Wheeltop didn't stay at that competitive intro price very long after launch of the GeX. US list is allegedly $799 but they have one sale or another most of the time to bring it to ~$530. LTWOO probably sees no point right now in pushing share at a lower price.

I'm also curious what the play will be from LTWOO now that Wheeltop is about to roll out the new "Rotor" (they bought Rotor a few months ago) full groupset.

Quote from: Aero-X on August 07, 2025, 04:04:23 PM
Thanks for the info. I was thinking about going the AliExpress route, but always feel their sellers are shady and I might not get tech support from Wheeltop.

I was going to go with the new SRAM Rival 1x 13 speed XPLR set up but decided to abandon because: 1. The cost. 2. Dot fluid. I know SRAM is migrating to mineral oil with their MTB groupsets. That hasn't happened in the road/gravel yet.

I have some Sram 12spd Eagle parts laying around. They were intended for a light weight hardtail MTB build. That project was later replaced with the gravel project(a used Lauf Seigla). So I have 10/50 12 Speed cassette, Chain, dub BB and a Force 1x 40T crankset. Just need the shifters and the RD. I don't really need the Wheeltop brake calipers since I have a set of 105 calipers and Wheeltop runs on mineral oil. So if the Wheeltop Gex works as well as every one of those youtubers rave about(except Peak Torque), it could complement with my SRAM parts and finish my build.

This Wheeltop idea is more or less of a stop gap and budget solution for now. I'm just waiting on better electric 1X wide groupset options available in near future.

I think you're describing nearly the perfect use case.

a) someone who knows how to work on the gear
b) someone who has parts in the bin
c) someone who may very well bounce between different 'speeds' in the lifetime of the product. (Pet peeve of mine is how Shimano and SRAM both demanded latest everything to use electronic when it would be trivial to support at least adjacent setups. Pure planned obsolescence not technical)

And yes, the Shimano calipers will work fine. That's what I'm using because I needed (and had) post mount calipers.  Also DOT fluid isn't that big of a deal. A bit of extra care when working with it is all.

Given that readers of this thread are interested, check out Peak Torque's new review

Quote from: lidation on July 03, 2025, 05:09:56 PM
I just began putting my bike together: SP-Cycle G069 gravel frame, Xiamen Carbon speed wheels with 160mm Shimano CL800 rotor, Wheeltop EDS GeX gropuset.
However, I found out that the brake pads only engage with the brake pads a little bit. I have used the correct adapter according to their manual. However, it seems that the GeX caliper position is not correct.  This happens to both the front and the rear.

Anybody experienced similar issue?  The SP-cycle G069 frame is a flat mount caliper mount, which the Wheeltop geX says to be compatible with.

Check what the 'native' rotor size is for that frame. I'm going to guess it is native 160mm. The 160mm adapters are better labeled at +20mm for using on 140mm native frames.

Quote from: Bikeoiv on June 25, 2025, 07:09:36 AM
I used the biggie/chainlink +4 links now. I couldn't find any recommendations in the manual.
Maybe I should try removing another link.

Hmmm. I wouldn't go shorter than 4. No hard science there but I can't imagine that the routing through the cage needs less than that.

Have you checked the tightness on the clutch. If I'm not mistaken the adjustment is literally a friction setting. If it's too tight it might not 'snap back' fast enough and leave you slack

Quote from: Bikeoiv on June 24, 2025, 05:27:18 PM
Anyone built a setup with 40T chainring and 11-46 cassette?
I'm struggling to get the 46T cog to run smoothly, it sounds like a monster when in that gear.

Another issue: when I set the tension screw correctly for the 46T, the chain becomes very slack when shifting to the smallest two cogs.

Any tips?

That sounds like a chain length issue. I cannot find the recommended method in the manual right now. But for a 1x, typically you want it as short as you can that doesn't overextend the cage in the low gear/biggest cog.  If it is too loose there, by the time it gets to the small cogs, the cage may not be able to take up enough and it will be slack.  The big cog fit will be painfully stretched for those used to a 2x setup.  A different system I have recommends sizing to the minimum length to go around the chainring and the biggest cassette cog NOT through the derailleur and then +4-5 links as the right length. Shockingly this seems to be right.

FWIW, I finally wrote up my experiences comparing Wheeltop GeX and LTWOO eGR and figured this thread might find it useful.

https://trbike.blogspot.com/2025/06/new-electronic-gravel-groupsets.html

Quote from: conradhughes on June 24, 2025, 03:40:14 AM
Wondering whether or not the new SRAM XPLR Rival 13 speed would be a better buy over the wheeltop GEX. Wheeltop is still half the price, and I'll be using my own crank and cassette anyway. Wondering how much the rival shifters, brakes + derailleur would cost vs. the wheeltop package. Maybe only a couple hundred more? Similar weights, too? And the SRAM stuff is infinitely upgradeable over time, and should carry good resale values.
Wheeltop will support a 50t though whereas the Rival won't. And would need to wait for 13speed MTB transmission derailleur for that to happen.
Fun times! Interested in people's thoughts on this.

Don't forget that with SRAM, you will probably be able to use a MTB RD to get to 52t support if 46 is too small (which I think it is for 1x particularly with the smallest SRAM chainring being 38T). No guarantee since Eagle tops out at 12s so far AFAIK. It will be interesting to see how that pricing works. I see the Rival 1x13 semi groupset (no chainset but the rest) priced at $1408 RRP / 1362 at one shop, which is reasonable today but still twice the Wheeltop price

You also need UDH for the new Rival I believe (A good thing if you have it but if you don't, it's a showstopper)

I finally posted my writeup of the comparison between these two groupsets. People on this thread may find it useful

https://trbike.blogspot.com/2025/06/new-electronic-gravel-groupsets.html

Quote from: sOKRATEs100 on June 18, 2025, 06:42:51 AM
@trcycling:

Could you explain a bit further?

"LTWOO only lets you pick left or right (and maybe reverse the paddles on one side?) You can't use both sides at once despite the fact they shipped symmetrical (mirrored) controls. I've contacted them about it and was told they didn't think they could do it due to patent issues. Yeah, that's not doing it for me."

Wheeltop lets you choose how to use the three switches (one left, big/small right)  You can use the two big paddles left and right like SRAM for lower/higher or you can run the right big/small to shift the RD. Actually you can have both at the same time.  Frankly, it's really great for my finger-brain connection because I have a SRAM and a LTWOO setup. So either works.

LTWOO, provides shifters with a big/small paddle on each side. Much like a Di2 2x setup. However your only option is to choose whether to activate the left or the right pair. It MUST be used Di2 style on that side.  It would be fantastic to use both sides that way or be able to set up the left paddle like on the Wheeltop/SRAM.

Quote from: ChrisB on June 08, 2025, 10:01:27 AM
Interesting discussion regarding the use of 50+ tooth cassettes with the eGR.

Just yesterday I shuffled some wheels and installed a  one with a Shimano microspline Casette 10-51 which came with my girlfriends new gravel bike.
Since I only have HG cassettes flying around, I gave it a try and installed the wheel as is. After some readjusting of the end stops and the B-Screw the shifting works quite well and even the 51 cog works.
My egr is from March 2024 so not sure if this already has the long derailleur cage or not.

Will try some outdoor ride to confirm there is no issue using this 10-51 cassette in the coming weeks and report back.

BR Chris

As far as I have been able to figure out, the longer cage made an appearance in the first months of 2025. No documentation to be found. Confirmation from LTWOO that it exists when I asked in April. Mine arrived in March. Many reports of short cage arriving since.

So unclear if it is a running change in the base eGR configuration (I question that because the web still says 46t here in June) or if it is an option that is undocumented (strange given the lack of markings/part numbers).

I think it is a running change but they made no effort to clear inventory in the channel and since they don't sell direct to consumer, aren't worried about the website. Odd though.

Search upthread for the dimensions of the two if you want to see the measurements to try to ask a seller.

Quote from: jonathanf2 on June 06, 2025, 12:35:54 PM
For those runnning 10/11-50t cassettes, what chainring size are you running? I'm running a 36t upfront on an 11 speed 9-50t cassette. Shifting seems decent, but B screw is almost all the way in. I also have an LTwoo mechanical GR9 RD bike for comparison and that derailleur can handle 50t with ease and ample of B-screw length. From the looks of it 50t is definitely max size for the eGR.

Actually, 50t is beyond the official spec for the eGR (46t). That said if run both 10 and 11 to 50t cassettes with good results. There is a longer cage version in the world but LTWOO doesn't seem to document it. Upthread I talk about getting one on warranty that seems happier with the 50t end. With the new one, I didn't need as much B screw. But it did work before

Quote from: amacal1 on May 26, 2025, 12:21:26 PM
Presumably you had the shorter cage before, right? Were you using it with a big cassette?

I'm curious how much shifting may have improved for you now that you've swapped to the longer arms. With a large 12sp cassette (50t) the shifting performance is pretty poor. It wasn't terriblely bad when I've been shifting around the middle of the cassette, but the last couple of weeks I threw road tires on my bike and have been sticking mostly to the 11, 13, 15t cogs and I'm fed up with the sluggish shifting.

FWIW, I had my RD replaced under warranty and the replacement came with the longer cage. My perception was a clear and definitive improvement, particularly on the large (low) cog. I'm running a Garbaruk 10-50. But this is one unscientific observation.