L-TWOO R9 2x11s Aluminium Road Rim Brake Groupset (ST-R5011)

The reviewer tests the L-TWOO R9 2x11s Aluminium Road Rim Brake Groupset (ST-R5011), noting it is the cheapest 2x11 speed groupset available. He praises the derailleurs for their build quality and shifting performance, but criticizes the shifters for several design flaws, including a missing washer that can cause the clamping bolt to chew through the plastic, lack of a hard stop at the end of gear range, and a plastic lever arm that can jam against the thumb shifter. Despite these issues, he finds the overall shifting acceptable once set up, but recommends the MicroNew shifters as a better budget alternative.

The reviewer briefly mentions the LTWOO-Road Bike Derailleurs, Chain Cassettes, Groupset for R7000 R5800 2X11V, 2x11 Speed, 22S, FD + RD + KMC X11, 11V Kit but does not provide detailed analysis.

The reviewer discusses converting an old 8-speed bike to an 11-speed turbo trainer bike using a budget L2 (LTWOO) groupset. They mention the LTWOO-R9 components, which include shifters, front and rear derailleurs, and a KMC X11 chain. The reviewer highlights the affordability and quality of LTWOO parts, noting they are building a reputation alongside other Chinese manufacturers like Sensah and WilTop. They specifically mention the R9 shifters, front and rear derailleurs, and the included KMC X11 chain, though they express skepticism about the chain being a genuine KMC product. The reviewer is impressed with the ergonomic feel and build quality of the LTWOO parts, particularly the shifters, which have integrated paddles and thumb toggles. They also note the need to ensure the correct type of front derailleur (braze-on vs. clamp-on) for the frame.