Shimano EW-SD50 Di2 E-Tube Wire

A Di2 E-Tube wire for Shimano 11-speed electronic shifting, the Shimano EW-SD50 carries power and shift signals on a 2mm-diameter line with a 4.5 to 5mm connector plug, connecting the components of an Ultegra 6770, 6870, R8000 or Dura-Ace 9070, R9100 Di2 system. The wire is sold by length and a typical internally-routed road bike requires around six wires of varying lengths to complete the build. The EW-SD50 is the right wire for any 11-speed Di2 build that needs replacement or expansion wiring.