The LTWOO eGR 1x12s electronic gravel groupset offers good value with smooth shifting and hydraulic disc brakes, but suffers from water ingress issues, poor customer service, and non-functional left shifter buttons in 1x setups, while a new full wireless 13-speed version addresses some complaints but introduces new limitations.
Pros
- Smooth and fast shifting performance once dialed in
- Good brake feel and modulation with hydraulic disc brakes
- Affordable price compared to Shimano or SRAM electronic groupsets
- App allows micro-adjustment of shifting for each cog
Cons
- Water ingress issues in rear derailleur, especially early versions
- Unreliable charging with magnetic port; newer versions require unplugging cable
- Poor customer service and slow warranty support from LTWOO
- Left shifter buttons are useless in 1x configuration and cannot be reconfigured
Key Facts
- MSRP ~3500 RMB (~$500), actual price $300-$650
- Uses 14500 batteries in seatpost holder
- Official max cassette 46T, but works with 50T and 9-50T
Reviews & Ratings
The LTWOO eGR 1x12s is an electronic gravel groupset with hydraulic disc brakes, using mineral oil and 14500 batteries. It supports 10-12 speeds with an official max cassette size of 46T, though users report compatibility with 50T and even 9-50T cassettes. The MSRP is around 3500 RMB (~$500), but actual prices vary from $300-$650. It includes shifters, rear derailleur, brake calipers, seatpost battery, and cables. Long-term reviews (2+ years, 1000+ miles) are positive, with users praising its reliability, smooth shifting, good brake performance, and excellent ergonomics with taller hoods and adjustable lever reach. However, the newer 2026 version removed magnetic charging, requiring unplugging the rear derailleur cable for charging—seen as a downgrade. Other issues include water ingress in early versions, poor customer support, expensive proprietary charging cables ($50), and non-functional left shifter buttons in 1x setup. A new full wireless 13-speed version has been announced, featuring a fully wireless RD with a 400mAh internal battery, USB-C charging, and new shifters without left shifter buttons. This version is lighter and officially supports 50T cassettes, but the small battery and lack of backward compatibility are concerns. The groupset offers great value but has beta-testing quality and limited updates, with no USB-C charging or major firmware improvements yet.
AI Summary
Pros
- Smooth and fast shifting performance once dialed in
- Good brake feel and modulation with hydraulic disc brakes
- Affordable price compared to Shimano or SRAM electronic groupsets
more pros in the review
Cons
- Water ingress issues in rear derailleur, especially early versions
- Unreliable charging with magnetic port; newer versions require unplugging cable
- Poor customer service and slow warranty support from LTWOO
more cons in the review
Key Points
- MSRP ~3500 RMB (~$500), actual price $300-$650
- Uses 14500 batteries in seatpost holder
- Official max cassette 46T, but works with 50T and 9-50T
more key points in the review
I have previous experience with L-Twoo groupsets. I much prefer the feel of the eGr shifters compared to the eR9...they have a far more tactile feel to the shift buttons, and the hoods are slightly chunkier (I find eR9 hoods a little too narrow). I went with a 46T max on the rear as that is the max stated capacity of the eGr. I _think_ it could take something bigger, but I don't really feel a need for it...42-46 is a far more generous gear than I'm used to.
Where to Buy

LTWOO eGR 1x12s Electronic Hydraulic Disc Brake Gravel Bike Groupset Road Electronic, APP programming, Gravel eGR Electronic 11s

LTWOO eGR 1x12s Elektronische hydraulische Scheibenbremse Gravel Bike Groupset Road Electronic, APP-Programmierung, Gravel eGR Electronic 11s - AliExpress 18

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