The LTWOO eGR 1x13s wireless electronic gravel groupset is a high-value budget option that delivers quick, precise shifting and top-tier hydraulic braking at a fraction of SRAM/Shimano electronic prices, but it carries real compromises in build quality, waterproofing and ecosystem lock-in. Reviewers and owners agree it works very well when set up correctly, while warning that early versions suffered water ingress, the left shifter's buttons are dead in 1x use, and the newest fully wireless revision trades a small 400mAh internal battery and backward compatibility for USB-C charging and official 50T support.
Pros
- Quick, precise and consistent shifting once dialed in, with no dropped chains or chain slap in muddy, wet testing12
- Top-tier hydraulic braking with lightweight monoblock calipers, pre-filled and working well out of the box31
- Exceptional value: roughly £230-£250 paid, or as low as $287 shipped, versus far more expensive SRAM/Shimano electronic groupsets32
- True wireless design makes installation easy, and USB-C charging on the new version replaces proprietary chargers32
- App allows manual per-sprocket tuning, useful with cheap cassettes32
- Shifters feel premium and tactile with good ergonomics, taller hoods and better lever reach adjustment than Wheeltop GeX342
- Long-term owners report 2+ years and 1000+ miles of trouble-free use2
- New version has good waterproofing, shifting flawlessly in mud and after washing2
- Flat-bar shifter version and dual-piston calipers are now available2
Cons
- Water ingress is a recurring problem: a garden-hose rinse killed the rear derailleur until it dried, and early versions needed dielectric grease or heat-shrink sealing12
- Left shifter buttons are non-functional in 1x use and cannot be reconfigured, leaving a visible cutout with sharp edges on the new version23
- Charging is awkward and proprietary: the new version removed magnetic charging and requires unplugging the derailleur cable, and replacement cables cost $20-5022
- Battery life on the new fully wireless version is a concern, with ~5% drain per 1.5-3 hours and an advertised 4500mAh that may be misleading given the 400mAh cell2
- Build quality feels cheap in places — charging port flap, plastics, non-ceramic pulleys, and a linear clutch that is not the most powerful3
- Poor customer service and slow warranty support from LTWOO2
- Non-standard 70mm flat-mount caliper design requires adapters and causes fit issues on some frames2
- New shifters are not backward compatible with older rear derailleurs, and shifting on the new version may feel slightly slower than v12
Key Facts
- Measured weight 1102.6 g total (front brake 124.5 g, rear brake 139.3 g, left shifter 207 g, right shifter 237 g, rear mech 395 g), versus 1217.8 g for SRAM eTap3
- Official maximum cassette is 46T, but users report 50T, 10-51T (Shimano M8100) and even 9-50T working with limit-screw/B-screw adjustment, with less smooth shifting221
- Uses mineral oil hydraulic brakes with flat-mount calipers and Shimano-style hoses; Shimano BH90 olives/inserts often work despite the manual specifying LTWOO parts32
- Older versions run on two 14500 button-top lithium batteries (800-1250 mAh) in a seatpost holder; the fully wireless 2026 version moves to an internal 400mAh battery charged by USB-C22
- Rear derailleur can be reset by holding a button for 8 seconds; app allows per-sprocket micro-adjustment and 13-speed configuration13
- Prices paid range from about £230-£250 on AliExpress with coupons, down to $287 shipped for the new version, against an expected ~£500 list and ~3500 RMB (~$500) MSRP321
- New shifters are not backward compatible with older rear derailleurs, so upgrading requires replacing the whole groupset2
- Firmware update enables the groupset to control the XOSS ChenPro/NavPro cycle computer, ahead of a planned year-end left-lever button5
Sources
- 1Trace VeloAn OUTSTANDING groupset, when it works… L-TWOO eGR
- 2ChinertownLTWOO eGR
- 3Tom Bowers CyclingLTWOO Finally Went Fully Wireless. Was It Worth The Wait?
- 4babychaos on ChinertownI have previous experience with L-Twoo groupsets. I much prefer the feel of t...
- 5yappycycleblog.comL-TWOO+サイコン。L-TWOO eGRがXOSS Chen Proを操作可能へ - yappycycleblog
Reviews & Ratings
23:30The reviewer tested a prototype LTWOO eGR 1x13s wireless electronic gravel groupset. He praised its shifting performance and braking, but encountered issues: a shift arm misalignment that was fixed, and water ingress that temporarily killed the rear derailleur. He noted the groupset is not fully waterproof and needs a redesign, but acknowledged it's a pre-release unit. He also tested an 11-50 cassette, which worked but shifted less smoothly than the 11-46.
18:15The reviewer discusses the LTWOO eGR 1x13s Wireless Electronic Gravel Groupset (2026) as a potential upgrade for their budget gravel bike, noting that it would require changing many components and significantly increase the cost. They mention that they are currently satisfied with their mechanical setup and do not plan to upgrade soon.
15:58The reviewer purchased the LTWOO eGR 1x13 (2026) groupset from AliExpress and tested it on a gravel bike. They found it to be a budget-friendly wireless groupset with some compromises in build quality and cassette compatibility, but praised its ease of installation, brake performance, and value for money.
The blog post reports that L-TWOO has released an update allowing its eGR 1x13s wireless electronic gravel groupset to control XOSS's latest cycle computer, the ChenPro (overseas name NavPro). The author frames this as L-TWOO following SRAM in releasing a 1x13 electronic groupset and now moving into cycle computer integration, and notes it appears to be an early implementation ahead of a planned year-end update adding a button to the left lever. The author views the XOSS integration as a strong selling point since no other computer currently pairs with and controls L-TWOO components, though they consider the ChenPro's map features behind similarly priced competitors.
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, with the new eGR v2 often found for as low as $287 shipped after coupons. 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. Recent user reports on the new eGR v2 (also called v3 by some) indicate it supports 13-speed, allows paddle button swapping, and has good waterproofing. It works with 10-51T cassettes, though shifting may feel slightly slower than v1 and the 50T may struggle to ramp up. Battery life is a concern, with ~5% drain per 1.5-3 hours and advertised 4500mAh possibly misleading (battery states 400mAh). The left shifter has a visible cutout where buttons were removed, which some find aesthetically poor. Pairing issues can occur but are resolvable via app cache clearing. The new version is not backward compatible with old shifters. A flat bar version with dual piston calipers is now available. Overall, the eGR remains a high-value option with strong performance, but potential buyers should be aware of battery life, shifting speed, and aesthetic compromises.
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
| Rating | ||||
|---|---|---|---|---|
 pandapodium.ccAffiliate · MyBikeParts | – | $580 | – | 0.0(0) |
 aliexpress.com#4000349848697Affiliate · MyBikeParts 80 Designer Store4.6/5 · 96% positive | 4.0(8)63 sold | |||
| aliexpress.com #1005006739609076Affiliate · MyBikeParts Price last checked 3 months ago | €484 | $545 | £375 | – |
| aliexpress.com #1005006603596553Affiliate · Tom Bowers Cycling LTWOO L-TWOO Official Store4.9/5 · 95% positive | €423+ €2 shipping | – | – | 4.4(14) |
| aliexpress.com #1005006685470104OFFLINE | – | – | – | 5.0(1) |
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