Shimano EW-SD300-I Electric Wire Di2 500mm Built-in Routing Attaquer the cross-section of the bar

the cross-section of the bar top has been developed in CFD and proven in the wind tunnel to reduce drag

a pressure angle of approx

heavier riders or frequent riding on rough chip seal and wet roads

and cable coupler takes up less space and keeps all the wax drips back in the pot to prevent wasted wax

Wider and gently raised edges on the tops support a better aero position on the hoods

Shimano EW-SD300-I Electric Wire Di2 500mm Built-in Routing Attaquer the cross-section of the barShimano Ew Sd300 I Electric Wire DI2 500mm Built in Routing Features More compact design makes new electric components smaller and lighter Will potentially expand the future capabilities of DI2 systems For internal routing usage Mfr Claimed Weight TBC