L-TWOO eR7 Electronic Road Groupset 2×12 Speed — Features and Specifications
The complete 2×12-speed drivetrain spans a wide gear range suited to flat criteriums, punchy rolling terrain, and sustained climbs, with 24 distinct ratios accessible through wireless electronic shifting that requires no cable tension adjustment after installation. Lightweight road bike components across the shifter, derailleur, and crankset sub-assemblies keep total system weight competitive with higher-tier electronic groupsets, giving you a genuine performance return on investment. APP-controlled customization via the L-TWOO mobile application lets you remap shift buttons, adjust synchronization sensitivity, and push firmware updates without a trip to the bike shop. Every unit leaves the factory calibrated to L-TWOO’s documented shift-accuracy specification, so out-of-box performance is consistent regardless of where you purchase. Order online today from the official store for the best price, verified authenticity, and full warranty support on all bicycle components and accessories.





















AliExpress Shopper –
Very nice appearance, just need to assemble it on the bike.
AliExpress Shopper –
Well packaged and shipping was fast.
AliExpress Shopper –
The set is as described, but it arrived in a somewhat adventurous packaging. . . The components themselves feel high-quality. . . The buttons and knobs feel good and are similar in feel to the branded parts. . . The braking feel is good. . . . The rear derailleur shifts cleanly and can be adjusted easily and quickly. . . However, the front derailleur is causing me problems. . . It’s really not easy to adjust. . . . The space between the frame and the limit area is too small, so I have to work with spacers. . . In addition, the trimming function is very poorly implemented. . . . It is possible to manually adjust the turner a bit, but that only works in one direction. . . Unfortunately, it is not possible to return to the original positions. . You then have to change the chainring first. . .
and switch it back so that the chain doesn’t wear out
Considering the price, I’m actually satisfied, but I wouldn’t buy it again and would rather invest a little more next time.