Shimano EW-SD 50 Electric Wire, Black - OUT OF BOX Length:200mm its rear triangle utilizes seat

its rear triangle utilizes seat stays that are positioned outboard of the seat tube

500mg of sodium per 32oz

A tall profile and widely spaced tread pattern cuts into the surface and grips any kind of loose or soft terrain

and minimized wear with every ride

Shimano EW-SD 50 Electric Wire, Black - OUT OF BOX Length:200mm its rear triangle utilizes seatShimano 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