Shimano EW-SD50 Di2 E-Tube Wire 600mm Largest Cog-26 Easily fits between the spokes

Easily fits between the spokes to remove the valve core for adding sealant without having to remove the tire

It is applied on a 60 TPI multilayer casing

Micro-adjustable cleat capture tension

6 Steerer Tube 1-1/8 Lower Cup 44mm Upper Cup 44mm Crown Race Diameter 30mm Headset Position Complete Primary Color Black Bearing Grade ACB Sealed

Shimano EW-SD50 Di2 E-Tube Wire 600mm Largest Cog-26 Easily fits between the spokesShimano E Tube wires and connectorsFrame 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 600