The Shimano 105 R7000 Rear Derailleur, featuring Shimano Shadow RD Technology, offers smooth 11-speed shifting and a low-profile design that protects it against frame impacts and improves aerodynamics. It provides efficient, precise shifting across various cassette sizes. The SS version is compatible with cassettes from 11/25T to 11/30T, while the GS version supports 11/28T to 11/34T. Key features include direct mount compatibility, stable shifting, and large 11-tooth pulleys for extended service life and reduced noise. The advanced wide link design enhances rigidity and shifting performance, making the Shimano 105 R7000 series an accessible and empowering groupset for road cycling enthusiasts.