Quote from: reckonair on December 02, 2024, 10:25:55 AM
Anyone know whether the fe806 is compatible with an electronic groupset? I like the look of that Ltwoo electronic gravel thing

I have a new FE806 running Ltwoo EGR. It works great, there is a single cable that runs from RD to battery in seatpost.  I ran it trough the hole for the RD cable and although it doesn't come with a rubber grommet to fill the space like some other frames, its not much of an issue to me.

Quote from: Frederic Grimm on October 27, 2025, 07:17:03 AM
Does anyone know of a current cyclocross frame that also has a UDH derailleur hanger? My search has been unsuccessful so far. Unfortunately, all gravel bikes have a huge BB drop, and I often hit the ground in corners with 70 mm.

I do not think one of these exists, but agree it would be a nice feature.

I've built up my EGR, but I'm running into an issue. Out of the box, it's reading the wrong gear. When I try to calibrate, the process times out — the RD disconnects and fails to calibrate to the correct gear (its on 6th on an 11-speed setup, but reads 4 in the app).

I've tried this on both Android and iOS.

The RD connects and shifts via the app, but during calibration it blinks a green light for an extended period before disconnecting.

Has anyone else run into this issue?

Has anyone else experienced a broken swing arm on the rear derailleur, as highlighted in the Trace Velo video?

I've heard of one other failure of the exact same nature and am curious how widespread this issue might be. I'm curious there's still old inventory of that first-generation component in circulation?

I'm currently building a cx bike with EGR and contemplating the failure during a race could be not good.

Thanks for the quick reply, it does appear sigeyi and xcadey make pms for that standard, so that's at least an option.

I went ahead and purchased this package set - https://www.aliexpress.us/item/3256806975863371.html?spm=a2g0o.order_list.order_list_main.17.65471802exkCPl&gatewayAdapt=glo2usa

I am wondering what standard for spider interface this zrace unchained crankset is.

The crankset seems light and well made, but wondering if I am stuck with limited options in chainrings.

I am seeing two different style brake calipers being sold with GEX, does anyone have insight as to the difference and if it is worth the more expensive/newer style blue ones?

Quote from: Da11as on December 17, 2024, 09:26:17 AM
I used FrankenSram setup on my TT bike. 1x, only blips and derailleur are Sram.
Decided to start with cheaper ZTTo cassette for around 45 USD, YBN SLA Chain and Pass Quest NW Oval chainrings. Works flawlessly, so in case you want more efficient chain or don't like SRAM drivetrain, change the freehub for shimano standard, it works fine. The only thing I would change is going to Shimano-like pulleys, but so far I'm fine with what I have.

Could you link to the ztto cassette you are using?

Quote from: SZDW on December 16, 2024, 11:25:00 PM
Maybe this one? They claim that it will work:

https://pl.aliexpress.com/item/1005008069279672.html?srcSns=sns_Copy&sourceType=1&spreadType=socialShare&bizType=ProductDetail&social_params=60903967251&aff_fcid=088afd614bba4c33a8b694d9728f7ee2-1734413000835-09501-_EJTsyb2&tt=MG&aff_fsk=_EJTsyb2&aff_platform=default&sk=_EJTsyb2&aff_trace_key=088afd614bba4c33a8b694d9728f7ee2-1734413000835-09501-_EJTsyb2&shareId=60903967251&businessType=ProductDetail&platform=AE&terminal_id=47bcb4e7614248a39fd52b17ca5c543e&afSmartRedirect=y

I am pretty sure this is the same xdr cassette that did not work for me, just branded goldix.  I am not sure I want to go down the same path, unless I read someone has a real life good experience.

Quote from: patliean1 on November 21, 2024, 09:01:07 AM
Has anyone out in the real world been able to quantify whether or not the square downtube is actually causing significant drag? Meaning, does the riding dynamics on road feel draggy? Can you actually tell?

I spent a significant amount of time riding side by side with friends on flat terrain, and as someone who pays close attention to power data, I feel confident that this bike doesn't come with an aero penalty. Based on what I've read about aerodynamics, the downtube is positioned in the 'dirty air' created by the front wheel, so having a slightly less aerodynamic shape doesn't significantly impact performance.

I'll update my own thread with my experience to help others.

I decided to try the 12-speed XDR cassette available under several brands on AliExpress. I paired it with a KMC 12-speed chain and a standard 5-bolt 11-speed chainring, which I have a large selection of. My thought was that it would be beneficial in the long run to stick with the Shimano-standard chain and chainring while using the AliExpress cassette.

Initially, I was optimistic. Shifting was decent—it did hang slightly on one gear but would eventually shift, just slowly.

However, after riding for several days, the performance declined. Most notably, the aluminum cog on the cassette is made from a lower-quality alloy compared to other cassettes; it developed chips and wear that became sharp, affecting performance to the point that the chain couldn't stay in that gear consistently.

As for the Stone chainrings, I believe the 5-bolt 110 BCD Stone ring still follows Shimano standards, while some of their newer models use the SRAM tooth profile.

In the end, I returned to a SRAM cassette with a Flattop chain, pairing it with the Wolf Tooth 5-bolt 110 BCD Stop Drop B (which is SRAM-compatible), and everything is now working smoothly. I'm still reliant on SRAM cassettes, but I've been able to find them at better prices on eBay.

Hope this helps others considering a similar setup

I have used both the ryet full carbon saddle and the plastic base one.  All have held up very well, and have continued to buy them.   In one instance I ran it with an elita one seatpost that just used the turned metal rail clamp.  After it slipped a couple of times I over torqued it, and it worked fine for a year but I compromised the carbon rails (user error/less than ideal design).   The saddle eventually failed while bunny hopping and landing hard on the saddle.  For cx/mtb, I err on the steel rail version.

I have tried to find good information on this subject all over and I am looking for real world experience here, or informed takes. The context of my inquiry is trying to minimally add axs to an existing 1x cross bike and keep, most importantly, my crank based PM (5 bolt 110 bcd spider) as well as other components.  The axs road components changed chain roller diameter size and it recommend everything be axs, but you know, this forum.

Some comments on the XDR ztto and goldix cassettes suggest they work best with standard 12 speed chains (eagle, kmc, ybn 12s) and do not work well with sram flattop.

What is performance like with sram axs road cassette and non flat top chain? 

KMC claims their new 12s chain is compatible across sram road axs and shimano.  How is that possible given the sram roller size change?

Is it best to keep flattop chain with sram axs cassette and just run an old 1x chainring and deal with whatever accelerated wear there may be on the chainring? I have had good experience with cheap 1x rings and don't mind changing them out more frequently to keep my crankset and pm

With regards to chainrings, what is performance like with a standard 1x narrow wide ring with non flattop chain? again I want to keep 5 bolt spider PM. 

Thanks for any input

One takeaway from the grading scale is the sample rate for QC.  I know everyone who drops a couple thousand dollars on a frame would love to believe it has been finely inspected in the factory, but the reality of QC is that you need to define a sample rate and have a process that is capable.  A more frequent sample rate is expensive for the labor to check, but it lowers the probability that process went sideways during the production.   It doesn't eliminate the chance that problems happen. 

I hope LightCarbon addresses this frame and replaces it.  I do think a lot of brands buy with smaller QC sample rates but rely on after market warranty to take care of issues when they arise, or they put in their own post-production inspection to return frames not up to brand standard (but this seems unlikely to me/or at least is a sample rate that is not 100%).

Looks great, and I love personal referential branding!

I am both excited for a Hambini video on this frame.  From my experience, if was a fantastic build and has been a great bike, and I would like for its internet cred to be maintained.

One update, while I don't have access to any sort of formal data, all my intuition and imperfect benchmarks on aero has been good despite the shape of the downtube. Riding side by side with others that I know their pm and my other bikes, this one has held up great.