Shimano EW-SD300 Di2 Electric Wire Cables (for 12 Speed) Size:350mm -PD-R8000/6800: +65 mm

-PD-R8000/6800: +65 mm

Multiple Computer Mount Options

Lightweight aluminium spider reduces weight while increasing stiffness

and up to 25mm internal rim width

For year-round chain maintenance

Shimano EW-SD300 Di2 Electric Wire Cables (for 12 Speed) Size:350mm -PD-R8000/6800: +65 mmShimano's EW SD300 Electric Wire Cables (for 12 Speed) power the new generation of Di2 groupsets. The new system requires only two cables, feeding from the internal battery (typically installed in the seatpost) directly into the front and rear derailleurs. Length Guide Front Derailleur to Internal Battery: 750mm Rear Derailleur to Internal Battery: 1200mm Please note this guide is intended as a reference only. Required cable lengths will differ