L-TWOO groupsets: electronic shifting for a fraction of the price
Contents
In short
- L-TWOO is a drivetrain maker based in Zhuhai in southern China; its founder worked at SRAM for ten years.
- Wireless electronic groupsets for road, time trial and gravel, mechanical groupsets for MTB.
- According to the brand, shifts take under 22 milliseconds, with 10–12-speed cassettes.
- Complete package: hydraulic brakes, battery, charger, setup from your phone.
- Electronic road groupsets from 161 900 Ft at our shop.
The same features for a fraction of the price
L-TWOO describes itself as China's largest bicycle drivetrain manufacturer. It started with mechanical MTB groupsets, and in 2023 it launched its first wireless electronic road system, the eRX. Because of in-house development and production, the groupsets offer the same features as the big brands' electronic groups: fast, precise shifting, hydraulic disc brakes, setup from your phone, just at a much lower price.
The founder, Liu Chunsheng, spent ten years at SRAM before starting his own company. Developing a new groupset at the company takes three to four years.
The range
| Groupset | Use | Feature | Price |
|---|---|---|---|
| eR7 2x12 | Road | Aluminium brake levers, the most affordable entry | 161 900 Ft |
| eGR 1x12 | Gravel | Fully wireless, cassettes up to 52 teeth | 169 900 Ft |
| eRX 2x12 | Road | Carbon brake levers, the top model | 272 900 Ft |
| eR9-TT 2x12 | Time trial, triathlon | Aluminium build, shift buttons on the extensions | 281 900 Ft |
| eRX-TT 2x12 | Time trial, triathlon | The time trial version of the eRX system | 328 900 Ft |
For the road: eRX and eR7
Both shift at the push of a button, in rain and cold too. The rear derailleur communicates wirelessly with the shift-brake levers, and both derailleurs are powered by a single battery hidden in the seat tube. The eRX with carbon brake levers is the racers' choice, and the eR7 with aluminium brake levers is the most affordable way into electronic shifting.
For time trials: eRX-TT and eR9-TT
The wireless shift buttons go on the ends of the extensions, and the base bar has hydraulic brake levers with shift buttons, so you can shift from the aero position and while braking.
For gravel and off-road: eGR and the T series
The eGR is a fully wireless 1x12 gravel groupset with hydraulic disc brakes. The mechanical T series groupsets (TX, T9, T7, T5) come in 12-, 11-, 10- and 9-speed versions with a clutch rear derailleur for MTB; you'll find them among the MTB groupsets.
What does the cycling press say?
The international cycling press takes L-TWOO seriously too. BikeRadar's buyer's guide covers the brand and its groupsets in detail, and in another round-up it ranks it among the most important Chinese groupset makers. road.cc's eRX review praised the groupset's low weight, USB-C charging and compatibility with 10–12-speed cassettes, but criticised the lengthy setup and brake bleeding, and found the shifting less refined than Shimano's or SRAM's. Germany's BIKE magazine tried out the MTB drivetrains at Eurobike.
Compatibility: keep what you've got
The electronic road groupsets work with 10-, 11- and 12-speed cassettes, so you can keep your current cassette, crankset and wheels. The groupsets include shift-brake levers, derailleurs, hydraulic brake calipers, battery and charger; the crankset, chain, cassette and rotors are not part of the package. Setup, button mapping and updates are handled with the free L-TWOO APP.
Who is L-TWOO for?
- Riders who'd like to switch to electronic shifting but find the big brands' prices too steep.
- Bike builders looking for a complete group that comes with brakes.
- Triathletes who want shifting on the extensions at a sensible price.
Why buy from Premiumbike?
You buy from a local webshop, so you don't have to deal with ordering from abroad and long-distance support. We ship in-stock groupsets within 2–4 working days, free over 75 000 Ft, and you have a 14-day right of withdrawal. We're happy to help with compatibility questions.
Explore our L-TWOO brand page, the full L-TWOO range and the electronic road groupsets.
