Shimano EW-SD50 Di2 E-Tube Wire 850mm CheckoutSpec= Ratchet For rear only with magnet

For rear only with magnet bracket

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Largest Cog 34 Color Black Rear Der/Shifter Compatibility Shimano Road Di2 Rear Derailleur Mount Type Shimano Rear Direct Mount Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 12 Chain Wrap Capacity (teeth) 37 Cage Length Medium

Shimano EW-SD50 Di2 E-Tube Wire 850mm CheckoutSpec= Ratchet For rear only with magnetShimano EW SD50 Di2 E Tube Wire 850mm. Shimano E Tube wires and connectorsFrame grommets for E tube internal wiring compatible frames are sold separately see Shimano Frame Grommet Kit Electronic Shifter Extra Parts Ultegra Di2 wires utilize Shimanos e tube technology; e tube is a two prong system and is NOT cross compatible with Dura Ace 7970 Di2 wiring All e tube wires may be used for internal or external applications TECH SPECS Length 850