L-TWOO GRT 12 Disc 1x12s Gravel Groupset Features and Specifications
The carbon fibre construction keeps the overall system weight low while maintaining the structural rigidity that hard-packed gravel and loose terrain demand from a trusted gravel drivetrain. A 1×12 speed configuration simplifies your cockpit and eliminates front-derailleur cable clutter, giving you a clean setup optimised for cyclo-cross and adventure riding. The hydraulic disc brake system delivers consistent modulation in wet, muddy, and dusty conditions, with two-finger control sufficient for long descents. ZRACE XG flat mount brake calipers meet GRX benchmark standards for heat dissipation and pad life, so you replace consumables less often during high-mileage seasons. Each component in this groupset ships from the official L-TWOO store with full quality inspection, so you receive 12-speed precision shifting performance from day one.












M***d –
I did get some old version with plastic shifter. it should be aluminium, no information about plastic shifter at all. and theres is no screw. once is broken, you can’t change it. there is a rivet! no hex screw or star screw. a rivet. i waited a long time, paid 1/3 price of the product in tax and this plastic surprise came out of the box. iam just sad.
П***ч –
I bought a set, rode for exactly a month and the shifter lever broke (cracked steel visible in the photo), thought I was unlucky and ordered a new shifter, but after a month it also broke in the same place. I’m not an athlete or an experienced cyclist, rode carefully, asphalt roads were bumpy, no extreme riding, installed on a new carbon bike. Before this, I used Shimano Tiagra for 5 years without any issues. Here you can see the place where the plastic cracked identical to the first shifter. I come to the conclusion that this is a design flaw because in that area the metal is thin and cannot withstand the forces of the shifter.
AliExpress Shopper –
The levers and the gear shifter arrived scratched. This is the problem of being shipped outside the original packaging. On the other hand, I can say that the weights announced correspond to the carbon version and they are correct, I can verify that.
M***r –
Superb shifters, work great. The combination with the zrace brakes is the perfect fit.