Shimano EW-JC130SS Di2 E-Tube Wire, Y-Split, 350/50/250mm

Shimano E-Tube wires Features-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 Item Specifications-FD/Shifter Compatibility:Dura-Ace 9070 Di2-FD/Shifter Compatibility:Shimano Ultegra Di2