The XT Di2 M8050 11 Speed Rear Mech blends powerful performance with precise shifting that remains crisp and consistent over time. The low-profile geometry and chain stabiliser ensure drivetrain security while the electronic wire transmission maintains consistent performance in all weather and trail conditions. Features Shifting motor responds instantly to rider input. E-Tube electric wire transmission guarantees consistent performance in all conditions. Accurate chain position in every gear. Programmable, multi-shift and Shimano Synchronised Shift functions. Low-profile design keeps derailleur safely away from trail obstacles. Shimano Shadow RD+ chain stabilizer with easy adjustment. Compatible with CS-M8000 11-46t cassette (1X11) and 11-40/11-42 (2x11). Weight: 329g.