NEW Shimano EW-SD50 Di2 E-Tube Wire, 400mm variant-size-39 Composite body

Composite body

Chain Connection Type: Single Use Master Link

Modified knobs on the shoulder and center improve braking performance and traction on hard surfaces

Color: Black

A single rear derailleur for all gearing combinations

NEW Shimano EW-SD50 Di2 E-Tube Wire, 400mm variant-size-39 Composite bodyShimano E Tube wires and connectors Frame grommets for E tube internal wiring compatible frames are sold separately, see Shimano Frame Grommet Kit Electronic Shifter Extra Parts Ultegra Di2 wires utilize Shimano's 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 Length: 400