SHIMANO DI2 EW-SD50 E-Tubes Wire
This is a Shimano Ultegra Di2 EW-SD50 Extension Wire for all Di2 systems except Shimano 7970 Dura-Ace.
All e-tube wires may be used for internal or external applications
Frame grommets for E-tube internal-wiring compatible frames are sold separately
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
FD/Shifter Compatibility: Dura-Ace 9070 Di2
FD/Shifter Compatibility: Shimano Ultegra Di2
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.