Shimano EW-SD50 Electric Wire Di2 250mm R0 for perfect tubeless compatibility without

for perfect tubeless compatibility without rim tape

They were developed to provide aerodynamic gains without the carbon price tag

the seat tube is a carbon ISP

340g (Medium)

This design also allows for a flatter plate

Shimano EW-SD50 Electric Wire Di2 250mm R0 for perfect tubeless compatibility withoutShimano Di2 e tube Wires Specifications 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 Frame grommets for E tube internal wiring compatible frames are sold separately, see Shimano Frame Grommet Kit Electronic Shifter Extra Parts Mfr Claimed Weight TBC