SHIMANO Cues Di2 Linkglide U6070 rear derailleur

Comfortably Smooth And Intuitive Auto-Shifting Rear Derailleur Keep Your Focus And Enjoy Comfortably Smooth Pedaling With The Inspiring And Intuitive Automatic Shifting Of The Shimano Cues Rd-U6070 Rear Derailleur. Features: - Automatic Shifting Compatibility Lets Anyone Enjoy Fun And Sporty Action Without Being An Expert - Compatible With Linkglide 11-50t 11-Speed Cs - Always Be Ready For Action In The Right Gear With Shimano Steps Enabled Free Shift - Automatic Shifting Without Pedaling Specifications: - Average Weight: 454 - Rear Speeds: 11 - Top-Normal Spring Type|Shimano Shadow Rd: Yes - Mount|Direct Attachment (Conventional): Yes - Max. Front Difference: Single - Total Capacity: 39 - Low Sprocket|Max.: 50 - Low Sprocket|Min.: 50 - Top Sprocket|Max.: 11 - Top Sprocket|Min.: 11 - Fluoric Coated Link Bushings: 2 - Pulley|Teeth: 11 - Pulley|Sunken Type Pulley Bolt: Yes - B-Axle|Hollow Axle: Yes - Di2 Connectivity Wired|Di2 Shifting: Yes - Firmware Update By E-Tube Project: Yes - Sd300 Port (Pcs): 1 - Led For System Status: Yes