The 105 R7000 Rear Derailleur has been designed to offer exceptional performance both on the road and  gravel routes. Utilising Shimano's tried and tested Shadow technology, the derailleur remains silent across the roughest of routes, offering smooth, reliable shifting in all conditions. The GS medium cage version is compatible with a wide gear range, allowing 11-34T cassettes to be used.   Features: Material: Aluminium. Speed: 11 Speed. Short Cage Covers: 11-25T to 11-30T. Medium Cage Covers: 11-28T to 11-34T. Stable shifting performance. Wide compatibility. Weight: 225g.