Hi,
I´m choosing between L-TWOO eRX (2026 updated with new calibers) and the WHEELTOP EDS TX for my next bike build (Seraph TT-X67) and hope to get some advice regarding performance, quality, setup etc.. It will ba paired with ZTTO SLR Gen2 12speed 11-36t casette and LEXON Carbon/ti crank and chainrings 52/36t + KMC DLC12 chain.
Hope some of you have some expiriences to share as im totaly torn between the 2 groupsets. I currently run L-TWOO eRX V3 2025 on my current bike, and have hat the battery replaced + strugle with brakes that need bleeding often..
I'd go with Wheeltop EDS TX at this point. The new fine-tune update has made the groupset a lot more easier to use. Initial setup is a bit cumbersome, but once setup it works fine. Also ample spare parts are available from Wheeltop and AliExpress.
LTwoo is a bit easier to setup, but my v3 ERX RD died, 80 Design store sent me a replacement, but it won't link up the FD which has been a pain. So I'm still talking to 80 Design store to figure out a fix for the problem (they might have ghosted me). Also finding replacement parts seem a bit more difficult now.
For long term maintenance and setup Wheeltop is now my preferred groupset.
Aoeagle here. We install a lot of EDS TX, so a few notes for your build. An 11-36 12-speed cassette is within what riders run on the TX rear derailleur, and a KMC 12-speed chain with 52/36 rings works fine with it. Setup is where people get stuck: fully charge both derailleurs before pairing, run the calibration in the app, then put the bike on a stand and use the fine-tune to center each cog one at a time. If the RD hesitates going onto the 36, raise the tension value 5 at a time and retest. Up front, get the FD height and angle right before trimming in the app. Once it's dialed it shifts reliably, just not as snappy under heavy load, so ease off the pedals a touch on big-ring shifts.