LTWOO eGR

[bichler.bua]

Yeah, I'm using XT so I'm limited to 11t as smallest cog, so I keep a 38t front chainring. I would be fine with a 46t or 48t max cassette, but there are no such cassettes I could find for 12sp.

Goldix 12-speed 11-46
https://www.aliexpress.com/item/1005008627720761.html

[jonathanf2]

Too many alloy cogs on that one, I prefer as few alloy big cogs as possible. I prefer this ZTTO HG cassette. I'm currently using the XD 9-50t  11 speed version and it's been good so far. Only problem is TACO tariff pricing sucks balls for US customers! Shop around and definitely use coupons if possible.

ZTTO 11-46/50 12 speed:
https://www.aliexpress.us/item/3256804675083210.html

[ChrisB]

I bought mine end of Nov. 2024 and it came with the shorter cage. I'm presuming your B-screw is all the way in?

I need to re-test my setup with adjusted gear fine tuning. I was also running a newly waxed chain, so that might have accounted for me not catching the gear adjustment prior to riding. I also have the mechanical GR9 bike to compare as a base comparison. That RD has far more leeway for bigger cassettes and can probably do a 52t cog no problem.

So must be the short cage given the date I bought the eGR set.
The B-screw is not completely maxed out yet but close, the distance between the 51T cog and the cage cog looks good and the chain clears well when shifting.
I am using an original Shimano chain that I rund with "Effetto Mariposa" fluid wax.

BR
Chris

[jonathanf2]

Has anyone yet tried going 2x on the eGR? I was able to get my mechanical LTwoo GR9 RD to shift well with a 10-42t 11 speed cassette, 46-30t chainring, Ultegra R8000 FD and SRAM GX 12 speed chain. Functionality should be similar with an eGR using an ER9/X FD. I just need to source another battery pack with 2 battery connectors and I have a spare ER9 FD I can use with the eGR set. The gear range should be massive!

[amacal1]

Has anyone yet tried going 2x on the eGR? I was able to get my mechanical LTwoo GR9 RD to shift well with a 10-42t 11 speed cassette, 46-30t chainring, Ultegra R8000 FD and SRAM GX 12 speed chain. Functionality should be similar with an eGR using an ER9/X FD. I just need to source another battery pack with 2 battery connectors and I have a spare ER9 FD I can use with the eGR set. The gear range should be massive!

I believe someone experimented a while back to confirm the parts communicated, but I don't believe I've seen any evidence of anyone actually "running" this setup and reporting back on how they work together or even what parts they used.

[lavistaa]

Has anyone yet tried going 2x on the eGR? I was able to get my mechanical LTwoo GR9 RD to shift well with a 10-42t 11 speed cassette, 46-30t chainring, Ultegra R8000 FD and SRAM GX 12 speed chain. Functionality should be similar with an eGR using an ER9/X FD. I just need to source another battery pack with 2 battery connectors and I have a spare ER9 FD I can use with the eGR set. The gear range should be massive!

This worrks if you start with erx, but it’s a new battery, front mech and brifter (for me) to get functionality so I just got individual erx brifters, battery and mech and they all work great with egr rear mech (11-46 with 46/30 bikinigreen on a p505 power meter.

[jonathanf2]

This worrks if you start with erx, but it’s a new battery, front mech and brifter (for me) to get functionality so I just got individual erx brifters, battery and mech and they all work great with egr rear mech (11-46 with 46/30 bikinigreen on a p505 power meter.

46-30t with an 11-46t cassette? Are you bike touring or climbing up vertical walls? 

I actually have a spare ERX FD, I just need to get a 2 port ER9/X battery. So I could, pull off this conversion.

Do you have a picture of your setup?

[kbernstein]

This worrks if you start with erx, but it’s a new battery, front mech and brifter (for me) to get functionality so I just got individual erx brifters, battery and mech and they all work great with egr rear mech (11-46 with 46/30 bikinigreen on a p505 power meter.

Thank you for trying this. Looks like my chinese groupset 50-34 11-42 dream isn't dead
How do you go about optimizing purchases for this setup? When I looked into it the best path was seemingly to buy a whole eRX groupset and then an eGR RD for ~250 from the repair accessories listing. Which adds up to pretty much ultegra prices

[jonathanf2]

Thank you for trying this. Looks like my chinese groupset 50-34 11-42 dream isn't dead
How do you go about optimizing purchases for this setup? When I looked into it the best path was seemingly to buy a whole eRX groupset and then an eGR RD for ~250 from the repair accessories listing. Which adds up to pretty much ultegra prices

LTwoo eGR prices went up. When it first came out, it was cheaper than ER9. I heard gravel is very niche in China, so low domestic sales probably means less inventory and higher prices. From what I've seen, eR9 prices for US buyers is a bit cheaper, so it might easier to get that and source an eGR RD separately.

[AndrewSpearns]

Hi,

I have a couple minor issues with my eGR group set but for this post just going to focus on the brake calipers. I've followed the manual for bleeding, and also some videos on YouTube. I'm familiar with hydraulic disc brakes, so I'm comfortable with the idea and processes, but for the life of me I cannot keep my rear caliper from slowly closing in on the rotor. I reset the pistons and do a quick bleed check, but every couple weeks I'll head to the garage and my rear brake lever is locked solid and the pads are on the rotor.

Any ideas? I'm nearing the point of buying different calipers.

Thanks
Andrew in Newfoundland, Canada

[courdacier]

Hi,

I have a couple minor issues with my eGR group set but for this post just going to focus on the brake calipers. I've followed the manual for bleeding, and also some videos on YouTube. I'm familiar with hydraulic disc brakes, so I'm comfortable with the idea and processes, but for the life of me I cannot keep my rear caliper from slowly closing in on the rotor. I reset the pistons and do a quick bleed check, but every couple weeks I'll head to the garage and my rear brake lever is locked solid and the pads are on the rotor.

Any ideas? I'm nearing the point of buying different calipers.

Thanks
Andrew in Newfoundland, Canada

thermal expansion? how hot does your garage get?

[00Garza]

Hi,

I have a couple minor issues with my eGR group set but for this post just going to focus on the brake calipers. I've followed the manual for bleeding, and also some videos on YouTube. I'm familiar with hydraulic disc brakes, so I'm comfortable with the idea and processes, but for the life of me I cannot keep my rear caliper from slowly closing in on the rotor. I reset the pistons and do a quick bleed check, but every couple weeks I'll head to the garage and my rear brake lever is locked solid and the pads are on the rotor.

Any ideas? I'm nearing the point of buying different calipers.

Thanks
Andrew in Newfoundland, Canada

One short ride on my new bike with eGR and my front caliper is doing the same. Caliper looks aligned well enough. No light comes through when I try to shine a light behind it now to check for clearance. Back brake is fine.

[jonathanf2]

Latest generation LTwoo calipers should have good brake pull. First gen calipers needed a few pumps on the pistons (minus the brake pads) to get them closer to the disc rotor in order to tighten up brake feel. I would check that the barb nut is firmly screwed in-place. Even if oil isn't leaking, air could potentially be seeping into the brake line. Once that's done, I'd top off mineral oil by placing a funnel on the bleed port on the shifters filled with a few milliliters of mineral oil. Pump some fluid into the system while letting out a few air bubbles. That should tighten things up.

[sOKRATEs100]

LTwoo eGR prices went up. When it first came out, it was cheaper than ER9. I heard gravel is very niche in China, so low domestic sales probably means less inventory and higher prices. From what I've seen, eR9 prices for US buyers is a bit cheaper, so it might easier to get that and source an eGR RD separately.

Prices went up massivly to around 850 USD. Even 200 USD more expensive than Wheeltop, but not wireless! What is going on? 

[jonathanf2]

Prices went up massivly to around 850 USD. Even 200 USD more expensive than Wheeltop, but not wireless! What is going on? 

My bet is that LTwoo will probably consolidate MTB and gravel 1x to make things more streamlined with the ETT groupset. From a small manufacturer POV, that would make the most sense. If that happens, it should help lower costs. The only downside I see, is that it might not be possible to run an FD with the ETT RD.